| PATRONYME | FREQUENCE |
| ACHIVER (L') | 2 |
| ACRAL | 2 |
| ADELIN | 3 |
| ALAFAT | 1 |
| ALAIE | 1 |
| ALAIN | 1 |
| ALAINMAT | 8 |
| ALAIRE | 1 |
| ALEE | 2 |
| ALER | 17 |
| ALES | 1 |
| ALLAIN | 5 |
| ALLAINHERRY | 1 |
| ALLAINMAT | 1 |
| ALLANO (L') | 1 |
| ALLANOU | 1 |
| ALLEE | 2 |
| ALLER | 1 |
| ALLES (L') | 1 |
| ALLEVAT | 1 |
| ALLI | 1 |
| AMICE | 1 |
| ANAVAT | 1 |
| ANDRE | 18 |
| ANDREAU | 1 |
| ANDREFF | 2 |
| ANNE | 1 |
| ARSUL (L') | 1 |
| ARTUR | 14 |
| AUBIN | 1 |
| AUBIN (L') | 1 |
| AUFFRAY | 3 |
| AUFFRET | 5 |
| AUFRET | 3 |
| AUGE | 1 |
| AUGER | 1 |
| AUTIER | 1 |
| BAIC | 1 |
| BAIL (LE) | 58 |
| BANNER (LE) | 38 |
| BANNIER | 6 |
| BANNIER (LE) | 1 |
| BANTAS | 2 |
| BARBE | 2 |
| BARBIER (LE) | 5 |
| BARBU (LE) | 8 |
| BARRIER (LE) | 12 |
| BARRIERE | 1 |
| BARRIERE (LE) | 1 |
| BARS (LE) | 95 |
| BARTZ (LE) | 1 |
| BARZ (LE) | 3 |
| BASTARD (LE) | 3 |
| BATAR | 1 |
| BATARD | 4 |
| BATARD (LE) | 2 |
| BAUDET | 2 |
| BAUDOUR (LE) | 8 |
| BAZILE | 2 |
| BEAUCOULEUR | 15 |
| BEAUDET | 3 |
| BEAUDOUR (LE) | 1 |
| BEAUSSON | 1 |
| BEAUVIR | 30 |
| BECHEC (LE) | 4 |
| BECHOUARN | 1 |
| BECOUARN | 62 |
| BEGUEC (LE) | 5 |
| BELLEC | 4 |
| BELLEC (LE) | 3 |
| BELLEGOU (LE) | 6 |
| BELLEGUIC (LE) | 5 |
| BELLEY | 1 |
| BELON (LE) | 1 |
| BER (LE) | 3 |
| BEREZAY | 1 |
| BERNARD | 9 |
| BERNARD-KERIVOT | 1 |
| BERRE (LE) | 3 |
| BERROCHE | 2 |
| BERTELOT | 2 |
| BERTHELOT | 20 |
| BERTHOU | 1 |
| BERTOU | 1 |
| BERTRAND | 1 |
| BERVET (LE) | 13 |
| BEUBRY | 1 |
| BEUGEARD | 2 |
| BEVILLON (LE) | 3 |
| BEYO | 1 |
| BEZU (LE) | 1 |
| BIAN (LE) | 53 |
| BIANNIC (LE) | 2 |
| BIDAN (LE) | 1 |
| BIDER (LE) | 1 |
| BIHAN (LE) | 159 |
| BIHANNIC (LE) | 2 |
| BILIOU | 1 |
| BILLIOU | 1 |
| BISIEN | 1 |
| BITER (LE) | 5 |
| BIZIEN | 6 |
| BLA (LE) | 2 |
| BLAIS | 5 |
| BLAIS (LE) | 1 |
| BLAISE | 1 |
| BLAIZ | 1 |
| BLANC (LE) | 1 |
| BLAS (LE) | 1 |
| BLAYAN | 1 |
| BLAZ (LE) | 1 |
| BLEIZ (LE) | 3 |
| BLES | 3 |
| BLEVIN | 2 |
| BLOAS | 1 |
| BLOAS (LE) | 6 |
| BLOT | 2 |
| BLOUART | 1 |
| BLOUIN | 15 |
| BOCHER | 3 |
| BOCHO | 1 |
| BOCLE | 1 |
| BOCOHO | 1 |
| BODIOU | 1 |
| BOENER (LE) | 1 |
| BOESART | 2 |
| BOETAR | 1 |
| BOHAN | 1 |
| BOISARD | 1 |
| BOISEC (LE) | 1 |
| BOIZARD | 3 |
| BOLLOCH (LE) | 1 |
| BOLORE | 1 |
| BONER (LE) | 9 |
| BONHOM (LE) | 3 |
| BONHOMME (LE) | 21 |
| BONNER (LE) | 36 |
| BONNOIS (LE) | 1 |
| BONNOIX (LE) | 1 |
| BONOM (LE) | 2 |
| BOQUEHO | 3 |
| BORGES | 1 |
| BORGNE (LE) | 1 |
| BORIOU (LE) | 1 |
| BORN (LE) | 1 |
| BOSEC (LE) | 1 |
| BOTDERF (LE) | 1 |
| BOUBENEC (LE) | 1 |
| BOUBENNEC (LE) | 1 |
| BOUCAM (LE) | 2 |
| BOUCHER (LE) | 1 |
| BOUCHERIE | 2 |
| BOUIL (LE) | 2 |
| BOUJAVEL | 2 |
| BOULANGER (LE) | 2 |
| BOULAY | 1 |
| BOULBIN (LE) | 17 |
| BOULIOU | 11 |
| BOULLE | 1 |
| BOULLIC | 2 |
| BOULLIOU | 1 |
| BOULZEC | 2 |
| BOULZEC (LE) | 2 |
| BOUR (LE) | 1 |
| BOURBIN (LE) | 2 |
| BOURCHIS (LE) | 1 |
| BOURDONEC (LE) | 2 |
| BOURGES | 4 |
| BOURIS (LE) | 1 |
| BOUT | 5 |
| BOUTIER (LE) | 1 |
| BOUZAY | 1 |
| BOUZEC (LE) | 1 |
| BOVILLON (LE) | 2 |
| BOZEC (LE) | 9 |
| BRANCHU (LE) | 1 |
| BRAS (LE) | 7 |
| BRASIC (LE) | 1 |
| BRE | 2 |
| BREAND | 1 |
| BREANT | 15 |
| BREAUT | 1 |
| BREE | 2 |
| BREHANT | 14 |
| BREHAULT | 3 |
| BREIL DU | 1 |
| BRETAGNE | 1 |
| BRETEQUIN | 1 |
| BRETON (LE) | 20 |
| BREZEL | 3 |
| BRIAND | 10 |
| BRIANT | 1 |
| BRIDO | 5 |
| BRIDOU | 1 |
| BRIEND | 10 |
| BRIENT | 129 |
| BRIGAND (LE) | 1 |
| BRIGANT (LE) | 12 |
| BRIOU | 1 |
| BRIS (LE) | 11 |
| BRISEUR (LE) | 1 |
| BROCHER (LE) | 6 |
| BROCHET | 1 |
| BROUDER (LE) | 10 |
| BROUSTER (LE) | 3 |
| BRUAL | 2 |
| BRUIERE | 1 |
| BRUN (LE) | 3 |
| BRUSQUELLEC | 1 |
| BUCHON | 19 |
| BURIERE | 1 |
| BURLOT | 6 |
| BURON | 1 |
| BURY | 1 |
| CABALA | 2 |
| CABALLA | 1 |
| CABO | 8 |
| CADEC | 1 |
| CADEC (LE) | 1 |
| CADELEC (LE) | 9 |
| CADELLEC (LE) | 2 |
| CADIOU | 1 |
| CADORE | 1 |
| CAER (LE) | 10 |
| CAIN (LE) | 3 |
| CAING (LE) | 1 |
| CALLEC | 1 |
| CALLENEC (LE) | 1 |
| CALONDERFF | 4 |
| CALVARY | 1 |
| CALVE | 5 |
| CALVEZ | 1 |
| CALVEZ (LE) | 10 |
| CAM (LE) | 59 |
| CAMIO | 1 |
| CAMUS | 3 |
| CAN (LE) | 4 |
| CANT (LE) | 2 |
| CAOSSIN (LE) | 1 |
| CAOUSSIN | 1 |
| CAOUSSIN (LE) | 1 |
| CAPITAINE (LE) | 4 |
| CARBOULEC (LE) | 4 |
| CARBOULET (LE) | 1 |
| CARCAILLET | 1 |
| CAREHER | 1 |
| CARER (LE) | 4 |
| CARES | 1 |
| CARIO | 9 |
| CARIOU | 75 |
| CARO | 4 |
| CAROU | 1 |
| CAROUX | 1 |
| CARPIER | 1 |
| CARRAES | 1 |
| CARRE (LE) | 1 |
| CARRO | 2 |
| CARSUNEL (LE) | 1 |
| CARTIER | 1 |
| CARUEL | 1 |
| CARVENEC (LE) | 38 |
| CARVENNEC (LE) | 24 |
| CARZUNEL | 1 |
| CARZUNEL (LE) | 4 |
| CASTAIGN (LE) | 4 |
| CASTAIN (LE) | 4 |
| CASTAING (LE) | 2 |
| CASTEL | 5 |
| CASTRAIGN (LE) | 4 |
| CASTRAIN (LE) | 3 |
| CASTRAING (LE) | 15 |
| CASTRING (LE) | 1 |
| CATRAINGN (LE) | 1 |
| CATTOU | 1 |
| CAUESSIN | 1 |
| CAULET | 4 |
| CAUSSAINT (LE) | 1 |
| CAUSSE | 1 |
| CAVALAN | 19 |
| CAVALLAN | 5 |
| CAVELAN | 4 |
| CAVERO | 1 |
| CAVOSSIN | 1 |
| CAVOSSIN (LE) | 1 |
| CERF (LE) | 8 |
| CERFF (LE) | 7 |
| CHAILLOU | 1 |
| CHAIS (LE) | 1 |
| CHALLONY (LE) | 1 |
| CHAMBRIN | 12 |
| CHANCELET | 1 |
| CHAPEL | 4 |
| CHARIAU | 1 |
| CHARTO | 1 |
| CHAT (LE) | 7 |
| CHATON | 1 |
| CHAUDELER (LE) | 4 |
| CHAUDELLER (LE) | 2 |
| CHAUVEL | 1 |
| CHEE (LE) | 12 |
| CHEMIN | 1 |
| CHENAY | 1 |
| CHENAY (LE) | 1 |
| CHENE (LE) | 1 |
| CHENUE (LE) | 1 |
| CHESNAY (LE) | 1 |
| CHESNE (LE) | 3 |
| CHEVALIER (LE) | 4 |
| CHEVALIER (LE)) | 1 |
| CHEVALLIER (LE) | 2 |
| CHEVANCE | 1 |
| CHEVER (LE) | 12 |
| CHEVOIR (LE) | 66 |
| CHODELER (LE) | 3 |
| CHODELLER (LE) | 4 |
| CHOEVREUR (LE) | 1 |
| CHOUIN | 1 |
| CHRISTEN | 1 |
| CLAIREC | 1 |
| CLAUROUX | 1 |
| CLAUROUX DE | 2 |
| CLECH (LE) | 86 |
| CLECHEN (LE) | 4 |
| CLEFF (LE) | 3 |
| CLEHEN (LE) | 7 |
| CLEIO | 2 |
| CLEMENT | 1 |
| CLERC | 1 |
| CLERC (LE) | 4 |
| CLEREC | 2 |
| CLEREC (LE) | 1 |
| CLEUIOU | 1 |
| CLEUYOU | 2 |
| CLINCH | 1 |
| CLOAREC | 1 |
| CLOCHET | 1 |
| CLOROUX DE | 1 |
| COASSIN | 1 |
| COASSIN (LE) | 9 |
| COATAREL DE | 1 |
| COATMEN DE | 1 |
| COATTAREL DE | 1 |
| COCHARD (LE) | 11 |
| COCHART (LE) | 15 |
| COCHEREL | 1 |
| COCHOU | 4 |
| COCQ (LE) | 22 |
| COCQUIEC (LE) | 1 |
| COESSAIN (LE) | 1 |
| COESSIN (LE) | 1 |
| COGNETS DES | 1 |
| COLEER | 1 |
| COLEER (LE) | 10 |
| COLEN | 1 |
| COLET | 7 |
| COLIN | 13 |
| COLIO | 1 |
| COLIOU | 2 |
| COLLAS | 1 |
| COLLEER (LE) | 1 |
| COLLERE (LE) | 1 |
| COLLET | 28 |
| COLLIN | 44 |
| COLLOEC (LE) | 3 |
| COLLOGNE (LE) | 1 |
| COLOEC (LE) | 6 |
| COMPTE (LE) | 1 |
| COMTE (LE) | 1 |
| CONAN | 24 |
| CONEN | 21 |
| CONIAT (LE) | 2 |
| CONNAN | 17 |
| CONNEN | 7 |
| CONNIAT (LE) | 1 |
| CONTE (LE) | 2 |
| CONTELEC (LE) | 1 |
| CONTELLEC (LE) | 6 |
| COQ (LE) | 9 |
| COQU (LE) | 17 |
| COQUILLARD | 2 |
| COQUU (LE) | 3 |
| COR | 5 |
| COR (LE) | 3 |
| CORBEL | 110 |
| CORBIE | 2 |
| CORBIER | 3 |
| CORBIOU | 3 |
| CORE | 3 |
| CORLAI | 1 |
| CORLAY | 17 |
| CORLOUER | 1 |
| CORNEC (LE) | 15 |
| CORNER (LE) | 3 |
| CORNIC (LE) | 1 |
| CORNO | 9 |
| CORNOU | 3 |
| COROLER (LE) | 1 |
| CORRE | 4 |
| CORRE (LE) | 123 |
| CORSON | 2 |
| CORVERSIER (LE) | 1 |
| CORVESIER (LE) | 9 |
| CORVEZIER (LE) | 3 |
| COS | 3 |
| COS (LE) | 1 |
| COSHARHANT | 1 |
| COSPEN | 24 |
| COSSON | 1 |
| COTIN | 1 |
| COTTIN | 24 |
| COUATELEN DE | 1 |
| COUFFON | 15 |
| COUFON | 1 |
| COUPLAN | 3 |
| COUPLANT | 29 |
| COURCOUL | 24 |
| COURGNEUL | 1 |
| COURQUEUX | 1 |
| COURSON | 4 |
| COURTES (LE) | 1 |
| COURTOIS (LE) | 3 |
| COUSIN | 1 |
| COVASSIN (LE) | 1 |
| COVESIN (LE) | 1 |
| COVESSAIN (LE) | 1 |
| COVESSIN | 1 |
| COVESSIN (LE) | 1 |
| COZ | 5 |
| COZ (LE) | 2 |
| COZIC | 4 |
| COZIC (LE) | 3 |
| COZLEER (LE) | 6 |
| COZLER (LE) | 7 |
| COZOU | 9 |
| COZQUEROU (LE) | 1 |
| CRAFER (LE) | 1 |
| CREACH | 1 |
| CRECHERVE | 1 |
| CREN (LE) | 18 |
| CRENAN | 32 |
| CRESOS | 1 |
| CREURER | 1 |
| CREURER (LE) | 141 |
| CREUREUR (LE) | 3 |
| CREUZRER (LE) | 2 |
| CROCHEE | 1 |
| CUDENEC (LE) | 1 |
| CUN (LE) | 10 |
| CUNF (LE) | 1 |
| CUNFF (LE) | 4 |
| DAGORN | 26 |
| DAGORNE | 15 |
| DALMAR | 1 |
| DANIEL | 7 |
| DANNO | 2 |
| DANNOS | 1 |
| DANREET (LE) | 1 |
| DANTEC (LE) | 1 |
| DANVEET (LE) | 1 |
| DAOULOUDET | 1 |
| DARSELLE | 1 |
| DAULOUDET | 2 |
| DAVID | 2 |
| DELAHAYS | 1 |
| DELOYER | 1 |
| DENIS | 6 |
| DERIEN | 18 |
| DEROUIN | 1 |
| DERRIEN | 8 |
| DESCHAMPS | 3 |
| DESIOURNE | 1 |
| DESLANDES | 1 |
| DESVEAU | 1 |
| DIHOLEN (LE) | 2 |
| DIHOLLEN (LE) | 1 |
| DIORN (LE) | 1 |
| DIOUREN (LE) | 1 |
| DIVESAT (LE) | 1 |
| DIVEZAT (LE) | 1 |
| DOEUF (LE) | 1 |
| DOLLO | 4 |
| DOLO | 3 |
| DOMALAIN | 2 |
| DONVEZET (LE) | 1 |
| DORE | 1 |
| DORE (LE) | 9 |
| DOUAREC (LE) | 17 |
| DREAU (LE) | 6 |
| DREMIER (LE) | 1 |
| DRENAS | 2 |
| DRESNAY DU | 1 |
| DREU (LE) | 1 |
| DRILLET | 16 |
| DROUMAGUET (LE) | 1 |
| DU (LE) | 14 |
| DUC (LE) | 1 |
| DUCHESNE | 2 |
| DUFF (LE) | 1 |
| DUFRESNE | 2 |
| DUHAMEL | 2 |
| DULAURIER | 1 |
| DULAY | 2 |
| DUPUYS | 2 |
| DURAND | 9 |
| DURET | 2 |
| DUVAL | 1 |
| ELART | 1 |
| ELIEN | 8 |
| ELLIEN | 49 |
| ENTEMPL | 3 |
| ERABY | 5 |
| ERIGOIS | 6 |
| ERYAN | 1 |
| ESCUIER (L') | 1 |
| ESTIEN | 3 |
| ESTIENNE | 1 |
| ETESSE | 1 |
| ETIENNE | 4 |
| EVEN | 13 |
| EVENNO | 8 |
| EVENNOU | 5 |
| EVENO | 22 |
| EVENOU | 81 |
| FAMEL | 4 |
| FARCY | 1 |
| FARON | 5 |
| FARSIE | 1 |
| FAUCON | 5 |
| FEBVRE (LE) | 3 |
| FEGER | 12 |
| FERLICOT | 1 |
| FETAR | 1 |
| FETARD | 1 |
| FEUVRE (LE) | 4 |
| FEVRE (LE) | 36 |
| FEVRIER | 1 |
| FICHE DE LA | 1 |
| FICHO | 3 |
| FICHOU | 16 |
| FLECHE (LE) | 1 |
| FLEM (LE) | 31 |
| FLEURY | 1 |
| FLOCH (LE) | 165 |
| FLOCHMOAN (LE) | 23 |
| FLOHOU | 3 |
| FLOURIOT | 39 |
| FLOURY | 2 |
| FOEZON | 1 |
| FOL (LE) | 3 |
| FOLL | 2 |
| FOLL (LE) | 2 |
| FOLLEZOU (LE) | 1 |
| FONTAINE | 1 |
| FORBAN | 3 |
| FORBAN (LE) | 20 |
| FORESTIER (LE) | 12 |
| FORT (LE) | 8 |
| FOUILLER (LE) | 3 |
| FOURE | 1 |
| FOURMANGE | 5 |
| FOURMANGER | 20 |
| FRANCE | 46 |
| FRANS | 7 |
| FRELICOT | 6 |
| FRESNE DE | 1 |
| FRICAUT | 1 |
| FRIEC (LE) | 9 |
| FROTER (LE) | 1 |
| FRUGLAYS (LE) | 1 |
| FUGA | 1 |
| FUR (LE) | 4 |
| FURET | 3 |
| GAC (LE) | 2 |
| GAGOU | 1 |
| GAIGN | 2 |
| GAIN | 2 |
| GAL (LE) | 29 |
| GALEOT | 1 |
| GALERNE | 1 |
| GALIC (LE) | 1 |
| GALL (LE) | 19 |
| GALLAIS | 3 |
| GALLE (LE) | 1 |
| GALLIC (LE) | 18 |
| GALLO (LE) | 6 |
| GALLOET | 1 |
| GALLOU (LE) | 5 |
| GALLOUEC (LE) | 1 |
| GALLOUET | 8 |
| GALOET | 2 |
| GALOPIN | 2 |
| GALOUET | 2 |
| GARE (LE) | 1 |
| GAREL | 1 |
| GARELET (LE) | 1 |
| GARERES (LE) | 8 |
| GARF (LE) | 8 |
| GARFF (LE) | 86 |
| GARIGNON (LE) | 16 |
| GARRIC (LE) | 1 |
| GARS (LE) | 1 |
| GARUFF (LE) | 1 |
| GARVIC (LE) | 5 |
| GASCOIN (LE) | 1 |
| GASCOING (LE) | 2 |
| GASPERN DE | 1 |
| GAUBERT | 4 |
| GAUDE | 1 |
| GAUDIN | 1 |
| GAUFNIC | 1 |
| GAUFNY | 1 |
| GAULTIER | 27 |
| GAUTHIER | 1 |
| GAUTIER | 81 |
| GEFFROY | 20 |
| GELARD | 2 |
| GELIN | 10 |
| GENDROU | 2 |
| GEORT | 4 |
| GERIN | 1 |
| GESLIN | 2 |
| GICQUEL | 3 |
| GILARD | 6 |
| GILLARD | 8 |
| GILLART | 2 |
| GILOU | 4 |
| GIQUEL | 1 |
| GIRAULT | 1 |
| GIRAUT | 8 |
| GIROU (LE) | 1 |
| GLEGUENNEC DE | 1 |
| GLEIO | 3 |
| GOALEC (LE) | 4 |
| GOALLEC (LE) | 32 |
| GOAREGUER (LE) | 1 |
| GOARIN | 6 |
| GOARLESQUIN | 2 |
| GOAS (LE) | 2 |
| GOASCOIGN (LE) | 1 |
| GOASCOIN (LE) | 1 |
| GOASCOING (LE) | 1 |
| GOASCON (LE) | 1 |
| GOASDOUE | 1 |
| GOAZIOU (LE) | 2 |
| GODE | 1 |
| GODEAU | 3 |
| GODEFROY | 1 |
| GOE (LE) | 2 |
| GOELO | 1 |
| GOES (LE) | 5 |
| GOEZ | 1 |
| GOEZ (LE) | 1 |
| GOFF (LE) | 74 |
| GOISCOIGN (LE) | 1 |
| GONIDEC (LE) | 63 |
| GORDE | 1 |
| GORGET | 2 |
| GOTER | 1 |
| GOTTER | 2 |
| GOUAJOU (LE) | 1 |
| GOUALEC (LE) | 1 |
| GOUAREGUER (LE) | 2 |
| GOUARIN | 3 |
| GOUE (LE) | 7 |
| GOUEZ (LE) | 4 |
| GOUEZO | 1 |
| GOUEZOU | 2 |
| GOUIEC | 2 |
| GOUJON | 4 |
| GOUNIDEC (LE) | 1 |
| GOUPIL | 30 |
| GOUR | 1 |
| GOURANTON | 2 |
| GOURET | 1 |
| GOURGE DE | 1 |
| GOURIARD (LE) | 1 |
| GOURIO | 2 |
| GOURIOU | 11 |
| GOUS (LE) | 5 |
| GOUX (LE) | 57 |
| GOUYET | 1 |
| GOUZ (LE) | 6 |
| GOUZE (LE) | 1 |
| GOUZOU | 2 |
| GRESOS | 1 |
| GRIL (LE) | 1 |
| GROSOS | 3 |
| GRUIERE | 1 |
| GUDEFF (LE) | 1 |
| GUE (LE) | 1 |
| GUEGAN | 9 |
| GUEN (LE) | 27 |
| GUENANEN | 25 |
| GUENEC (LE) | 1 |
| GUENGAMP | 1 |
| GUENNEC (LE) | 9 |
| GUERGUIC (LE) | 1 |
| GUERMOESSAN DE | 1 |
| GUERNEUF | 1 |
| GUERNEVEZ (LE) | 2 |
| GUERRET | 1 |
| GUERVEUR (LE) | 3 |
| GUERVILLY | 9 |
| GUERVILY | 7 |
| GUEVEL (LE) | 4 |
| GUEVELLOU (LE) | 7 |
| GUEVELOU | 1 |
| GUEZ (LE) | 6 |
| GUEZENEC | 1 |
| GUEZENNEC | 1 |
| GUEZO | 5 |
| GUEZOU | 12 |
| GUIADER (LE) | 17 |
| GUIARD | 4 |
| GUIART | 3 |
| GUIBOREL | 1 |
| GUIDEVAU | 8 |
| GUIDEVEAU | 2 |
| GUIERET | 1 |
| GUILCHER (LE) | 2 |
| GUILER (LE) | 1 |
| GUILLARME | 1 |
| GUILLARMIC | 1 |
| GUILLARMO | 2 |
| GUILLAUME | 17 |
| GUILLEMOT | 14 |
| GUILLERM | 1 |
| GUILLERMO | 9 |
| GUILLO | 6 |
| GUILLOSO | 1 |
| GUILLOSSOU | 1 |
| GUILLOU | 20 |
| GUILLOU (LE) | 3 |
| GUILLOUET | 2 |
| GUILLOUS (LE) | 1 |
| GUILLOUX | 11 |
| GUILLOUX (LE) | 9 |
| GUILOUET | 1 |
| GUINGAMP | 1 |
| GUIOMAR | 13 |
| GUIOMARCH | 1 |
| GUIOMARD | 8 |
| GUIOMARH | 1 |
| GUION | 1 |
| GUIOT | 3 |
| GUYADER | 1 |
| GUYADER (LE) | 15 |
| GUYARD | 4 |
| GUYART | 4 |
| GUYDEVAU | 2 |
| GUYOMAR | 17 |
| GUYOMARCH | 2 |
| GUYOMARD | 10 |
| GUYOMART | 2 |
| GUYOT | 6 |
| HALLES | 1 |
| HAMON | 24 |
| HAMONIOU | 2 |
| HAQUET | 1 |
| HARCOET | 1 |
| HARDY (LE) | 15 |
| HARSCOET | 84 |
| HARSCOUET | 28 |
| HEGARAT (LE) | 1 |
| HELARI | 1 |
| HELARY | 81 |
| HELLARY | 16 |
| HELLIER (L') | 1 |
| HELLO | 8 |
| HELLOU | 2 |
| HELLUEN | 1 |
| HELMOIS | 1 |
| HELMOT | 16 |
| HELO | 1 |
| HENAF (LE) | 1 |
| HENAFF (LE) | 22 |
| HENAN (LE) | 1 |
| HENANF (LE) | 6 |
| HENANFF (LE) | 3 |
| HENAUF (LE) | 1 |
| HENAUFF (LE) | 2 |
| HENGOAT | 6 |
| HENNAFF (LE) | 1 |
| HENNAUF (LE) | 1 |
| HENRI | 1 |
| HENRY | 33 |
| HERBERS | 3 |
| HERBERTZ | 6 |
| HERI | 1 |
| HERISSON | 23 |
| HERMOT | 2 |
| HERNAUT | 1 |
| HERRY | 3 |
| HERVAU | 2 |
| HERVAUX | 2 |
| HERVE | 73 |
| HERVEAUX | 3 |
| HERVIOU | 1 |
| HERVOU | 1 |
| HERY | 6 |
| HEZANFOIS | 1 |
| HIDRIAU | 1 |
| HIDRIO | 3 |
| HIDRIOU | 9 |
| HILION | 10 |
| HILLIEN | 1 |
| HILLION | 16 |
| HILLY | 1 |
| HINGANT | 1 |
| HOERVE (LE) | 1 |
| HOSPITALIER(L') | 1 |
| HOSTELIER (L') | 4 |
| HOSTELLIER (L') | 1 |
| HOTELLIER (L') | 3 |
| HOUART | 7 |
| HUBE | 1 |
| HUET | 16 |
| HUNVOIS | 1 |
| HUON | 6 |
| HYDRIOU | 4 |
| HYLION | 1 |
| ILIEN | 10 |
| ILLIEN | 19 |
| ILLY | 3 |
| ILY | 3 |
| JAC | 10 |
| JACQ | 5 |
| JACQUERIOU | 3 |
| JAFFRAY | 4 |
| JAG | 3 |
| JAGOU | 2 |
| JAMBRIN | 1 |
| JAN | 31 |
| JAN (LE) | 2 |
| JANBRIN | 1 |
| JANDROU | 1 |
| JANJAN | 1 |
| JANNIC | 2 |
| JAOUANNART | 1 |
| JAOUEN | 1 |
| JAOUEN (LE) | 1 |
| JAOUENNOU | 1 |
| JAOUENOU | 1 |
| JAOUNARD | 5 |
| JAOUNOU | 1 |
| JARNAU | 1 |
| JARNO | 2 |
| JAUANNART | 1 |
| JAUEN | 1 |
| JAUENART | 1 |
| JAUENNOU | 1 |
| JAUHAN | 1 |
| JAUHANNARD | 1 |
| JAUNARD | 13 |
| JAUNAS | 1 |
| JAUVENOU | 1 |
| JEAN | 8 |
| JEAN (LE) | 1 |
| JEGO | 12 |
| JEGOU | 110 |
| JEGU | 1 |
| JEHANNOT | 2 |
| JEORT | 1 |
| JEQUEL | 10 |
| JEZEQUEL | 15 |
| JICQUEL | 1 |
| JIQUEL | 2 |
| JOANNART | 1 |
| JOANNO | 3 |
| JOHANNIC | 1 |
| JOLLIVET | 1 |
| JOLY (LE) | 2 |
| JONCOUR (LE) | 20 |
| JORD | 3 |
| JORT | 1 |
| JOSSE | 41 |
| JOUAN | 17 |
| JOUANARD | 3 |
| JOUANART | 2 |
| JOUANNART | 10 |
| JOUANNAU | 3 |
| JOUANNIC | 1 |
| JOUANNOU | 2 |
| JOUARD | 1 |
| JOUBIN | 1 |
| JOUENARD | 4 |
| JOUENART | 1 |
| JOUENNO | 1 |
| JOUENO | 2 |
| JOUENOU | 1 |
| JOUET | 1 |
| JOUHANNOU | 1 |
| JOUHANO | 4 |
| JOUHENART | 3 |
| JOURAND | 1 |
| JOURNE DU | 1 |
| JOURNEE | 1 |
| JOYEUX (LE) | 1 |
| JULLOU | 1 |
| JULO | 1 |
| JULOU | 17 |
| KERAUTRET | 1 |
| KERAVIS | 2 |
| KERBELLEC | 6 |
| KERDANIEL DE | 1 |
| KERGAL | 3 |
| KERGARIOU DE | 1 |
| KERGOC | 1 |
| KERGUS | 18 |
| KERHARDY | 11 |
| KERIEN | 8 |
| KERIMEL | 3 |
| KERIMEL DE | 8 |
| KERIVOALLAN | 1 |
| KERLAN | 3 |
| KERLEAU | 1 |
| KERLECH DE | 2 |
| KERLOAGUEN DE | 1 |
| KERMOISAN | 4 |
| KERMOISAN DE | 1 |
| KERMOYSAN | 4 |
| KERMOYSAN DE | 1 |
| KERNANET | 5 |
| KERNANNET | 1 |
| KERNAONET | 8 |
| KERNAU | 1 |
| KERNAVANAY DE | 1 |
| KERNAVANEN DE | 1 |
| KERNEAU | 5 |
| KERNONET | 2 |
| KEROIGNANT DE | 1 |
| KEROMES | 2 |
| KEROTRET | 1 |
| KERRIEN | 1 |
| KERROTRET | 1 |
| KERSAU | 1 |
| KERUZEC DE | 6 |
| KERVENEC | 1 |
| KERVERDER DE | 5 |
| KERYMEL | 1 |
| LABAT | 2 |
| LABBAT | 1 |
| LABBE | 2 |
| LABIA | 8 |
| LABOUR (LE) | 3 |
| LABROYS | 1 |
| LACENER | 1 |
| LACHIVER | 18 |
| LAGADEC (LE) | 1 |
| LAGADU (LE) | 1 |
| LAGATDU (LE) | 14 |
| LAGATU (LE) | 3 |
| LAHAY | 2 |
| LAHAYE | 1 |
| LALANO | 3 |
| LALES | 41 |
| LALLES | 27 |
| LALOYER | 1 |
| LAMANDE | 2 |
| LAMOTTE | 1 |
| LAMY | 1 |
| LAN (LE) | 5 |
| LANCIEN | 6 |
| LANDIGNE | 1 |
| LANLOUP | 7 |
| LARIVEN | 7 |
| LARMET | 9 |
| LAROUE | 3 |
| LARROUEE | 2 |
| LATROCHE | 14 |
| LAULO | 1 |
| LAURANS | 3 |
| LAURANT | 1 |
| LAURENCE | 2 |
| LAURENS | 7 |
| LAURENT | 33 |
| LAURES | 12 |
| LAUREZ | 1 |
| LAVENAN (LE) | 3 |
| LEARD | 9 |
| LEART | 8 |
| LECORGNE | 1 |
| LEFF | 6 |
| LENCIER | 1 |
| LEON | 1 |
| LEPOITEVIN | 1 |
| LEPVRIER (LE) | 1 |
| LESNE | 3 |
| LESQUELEN | 1 |
| LESQUELLEN | 1 |
| LEVENE | 1 |
| LEVRER (LE) | 1 |
| LEVRIER | 2 |
| LEVRIER (LE) | 7 |
| LEZEC (LE) | 1 |
| LIMONEIL | 1 |
| LIURON (LE) | 1 |
| LOAS | 1 |
| LOBIN | 1 |
| LOCARD (LE) | 2 |
| LOCART (LE) | 2 |
| LOCAT (LE) | 1 |
| LODIC | 1 |
| LOG (LE) | 1 |
| LOGIOU | 2 |
| LOGOU | 1 |
| LOHAN | 1 |
| LOHAN (LE) | 5 |
| LOHEN (LE) | 9 |
| LOJOU | 1 |
| LOLIEC | 1 |
| LOLIER | 1 |
| LOLIERO | 3 |
| LOLIEROU | 7 |
| LOLIVAY | 3 |
| LOLIVE | 6 |
| LOLLIEC | 1 |
| LOLLIERO | 1 |
| LOLLIEROU | 1 |
| LOLLIVAY | 4 |
| LOLLIVE | 1 |
| LOPIN (LE) | 75 |
| LOPPIN (LE) | 3 |
| LORANS | 1 |
| LORANTON | 2 |
| LORENEC | 1 |
| LORGEET | 1 |
| LORGERAY | 2 |
| LORIENT | 1 |
| LOSTELLIER | 1 |
| LOUARN (LE) | 6 |
| LOUEDEC (LE) | 9 |
| LOUET (LE) | 5 |
| LOYER | 3 |
| LOZIART | 1 |
| LUCAS | 42 |
| LUGART | 1 |
| LUTIC | 3 |
| MACE | 3 |
| MADAY | 1 |
| MADEC | 1 |
| MADERAN | 1 |
| MAGADEL | 4 |
| MAGOARIEC (LE) | 1 |
| MAHE | 107 |
| MAHUE | 1 |
| MAILLARD | 7 |
| MAILLART | 2 |
| MAISTRE (LE) | 1 |
| MAITREJAN | 2 |
| MAITREJEAN | 3 |
| MALAR | 1 |
| MALCAFAT | 3 |
| MALCAPHAT | 3 |
| MALCAVAT | 2 |
| MALEFANT | 1 |
| MALEFANT (LE) | 5 |
| MALET | 1 |
| MALPOT | 2 |
| MANACH (LE) | 27 |
| MANCHEC (LE) | 1 |
| MANDON | 1 |
| MANSEC (LE) | 1 |
| MARC (LE) | 1 |
| MARCHAND (LE) | 7 |
| MARCHANT (LE) | 1 |
| MARCHIC | 1 |
| MARE (LE) | 1 |
| MAREC | 12 |
| MAREC (LE) | 6 |
| MARION | 4 |
| MAROS | 10 |
| MAROZ | 1 |
| MARQUER | 39 |
| MARQUIER | 12 |
| MARTIN | 15 |
| MASSON (LE) | 7 |
| MAUBUCHON | 6 |
| MAUDE | 27 |
| MAUDES | 7 |
| MAUDEZ | 10 |
| MAUGOUER DU | 1 |
| MAUGUEROU (LE) | 1 |
| MAUSER (LE) | 1 |
| MAUT (LE) | 1 |
| MAY (LE) | 2 |
| MAZE | 3 |
| MAZEVET | 7 |
| MEE (LE) | 4 |
| MEEC (LE) | 1 |
| MEIL (LE) | 2 |
| MEJAN | 3 |
| MEJEAN | 3 |
| MEL | 3 |
| MELAT | 1 |
| MELAT (LE) | 1 |
| MELEDER (LE) | 1 |
| MELLAT | 1 |
| MELLAT (LE) | 5 |
| MEN (LE) | 13 |
| MENGUY | 11 |
| MENIER | 2 |
| MENOU | 1 |
| MERCIER | 1 |
| MERCIER (LE) | 6 |
| MERER (LE) | 2 |
| MERIADEC | 2 |
| MERIEN | 11 |
| MERLE (LE) | 2 |
| MERRIEN | 6 |
| MESIAN | 8 |
| MESJAN | 6 |
| MESLE | 1 |
| MESSIAN | 1 |
| MESTREJAN | 3 |
| MESTREJEAN | 1 |
| MEUR (LE) | 20 |
| MEURIC | 4 |
| MEURIES | 1 |
| MEURO | 22 |
| MEUROU | 41 |
| MEVEL | 1 |
| MEZEC (LE) | 4 |
| MEZELAT (LE) | 1 |
| MICHAI | 2 |
| MICHAU | 1 |
| MICHAUD | 2 |
| MICHAUX | 1 |
| MICHEL | 21 |
| MIGNOT (LE) | 13 |
| MILON | 4 |
| MINDREN | 57 |
| MINDRIN | 8 |
| MINEC (LE) | 6 |
| MINEUR (LE) | 9 |
| MINGOT (LE) | 1 |
| MINGUY | 3 |
| MINIER | 3 |
| MINIO (LE) | 1 |
| MINOR | 1 |
| MINTER (LE) | 1 |
| MOAL (LE) | 48 |
| MOAN (LE) | 9 |
| MOBUCHON | 15 |
| MODE | 1 |
| MODEZ | 1 |
| MOGER DU | 1 |
| MOGOER (LE) | 1 |
| MOGUEDEC (LE) | 1 |
| MOGUER DU | 1 |
| MOGUERO (LE) | 5 |
| MOGUERO DU | 3 |
| MOGUEROU (LE) | 8 |
| MOHOTER (LE) | 1 |
| MOIGN (LE) | 2 |
| MOIGNE (LE) | 1 |
| MOIGNET | 2 |
| MOIN (LE) | 4 |
| MOINE (LE) | 2 |
| MOING (LE) | 32 |
| MOISAN | 35 |
| MONFORT | 35 |
| MONIER (LE) | 6 |
| MONJARET | 44 |
| MONJOUAN | 1 |
| MONNIER (LE) | 1 |
| MONTAUBAN | 2 |
| MONTFORT | 1 |
| MORDELET | 10 |
| MORDELLET | 5 |
| MOREL | 14 |
| MORICE | 209 |
| MORIN | 1 |
| MORO | 1 |
| MORON | 2 |
| MORTELLEC (LE) | 3 |
| MORVAN | 88 |
| MORVAN (LE) | 2 |
| MOTE (LA) | 1 |
| MOTES | 1 |
| MOUANIC (LE) | 1 |
| MOUISAN | 2 |
| MOULEC (LE) | 1 |
| MOULIN | 1 |
| MOULIN DU | 1 |
| MOULINET | 1 |
| MOULINET (LE) | 5 |
| MOUYSAN | 1 |
| MOY | 2 |
| MOYSAN | 31 |
| MULON | 4 |
| MULOU | 1 |
| NABOUR (LE) | 8 |
| NABUZET | 1 |
| NAURES (LE) | 2 |
| NICOL | 7 |
| NICOLAS | 8 |
| NOBIN (LE) | 3 |
| NOEL | 1 |
| NORMAND (LE) | 5 |
| NORMANT (LE) | 1 |
| NOUVEL (LE) | 1 |
| OFFRET | 3 |
| OGE | 8 |
| OGEL | 14 |
| OGER | 3 |
| OLIER (L') | 1 |
| OLIERO (L') | 3 |
| OLIEROU (L') | 1 |
| OLIVIER | 5 |
| OLIVIERY | 1 |
| OLLIER (L') | 1 |
| OLLIERO | 1 |
| OLLIERO (L') | 2 |
| OLLIVIER | 32 |
| OLLO | 1 |
| OMNE | 1 |
| OMNES | 1 |
| ORHAN | 1 |
| PADEL | 17 |
| PAGE | 1 |
| PAGE (LE) | 46 |
| PAPE (LE) | 7 |
| PARC (LE) | 4 |
| PARCOU (LE) | 7 |
| PARIS | 2 |
| PARISCOAT (LE) | 1 |
| PARISCOT (LE) | 21 |
| PARISY (LE) | 2 |
| PASCOU | 1 |
| PASQUIOU | 1 |
| PATOGER | 4 |
| PATUREL | 1 |
| PECHOU | 3 |
| PEDRON | 4 |
| PEILLET (LE) | 1 |
| PELLETER (LE) | 1 |
| PEN | 5 |
| PENHOADIC DE | 4 |
| PENNEC (LE) | 2 |
| PENVEN | 1 |
| PERCHIC (LE) | 1 |
| PEREDO | 4 |
| PERIN | 16 |
| PERO | 3 |
| PERON | 11 |
| PERONNES | 1 |
| PEROT | 1 |
| PEROU | 9 |
| PERREIN | 2 |
| PERRET | 1 |
| PERRIN | 13 |
| PERRO | 1 |
| PERRON | 1 |
| PERROT | 5 |
| PERSON | 1 |
| PERSON (LE) | 2 |
| PERSONIC (LE) | 1 |
| PERSONNE (LA) | 2 |
| PERSONNIC (LE) | 9 |
| PESSOT (LE) | 3 |
| PETITJEAN | 2 |
| PEURIAN | 1 |
| PEURO | 2 |
| PEUROU | 3 |
| PEZDRON | 4 |
| PEZRON | 5 |
| PHARAU | 1 |
| PHARON | 2 |
| PHELIPOT | 1 |
| PHELIPPE | 3 |
| PHILIPOT | 10 |
| PHILIPPE | 21 |
| PHILIPPOT | 26 |
| PIAVIRE | 1 |
| PICARD (LE) | 22 |
| PICART (LE) | 6 |
| PICAULT (LE) | 1 |
| PICHERON | 1 |
| PICHON (LE) | 1 |
| PIERRE | 64 |
| PIERRE (LE) | 5 |
| PIERRES | 2 |
| PILART | 1 |
| PINEL | 1 |
| PIVAIN (LE) | 1 |
| PIVER (LE) | 1 |
| PLANTE | 2 |
| PLETAN | 9 |
| PLONEZ | 3 |
| PLOUNEZ | 3 |
| PLOUSANEC | 1 |
| PLOUZANEC | 4 |
| PLUSQUELLEC | 7 |
| POAS (LE) | 4 |
| POENCE | 5 |
| POENS | 24 |
| POESELLER (LE) | 1 |
| POEZEL | 2 |
| POEZELLER (LE) | 1 |
| POEZEVARA | 1 |
| POINCE | 3 |
| POINS | 20 |
| POISSANT (LE) | 1 |
| POLLES (LE) | 3 |
| POMMELEC (LE) | 2 |
| PONVIDIC (LE) | 1 |
| PORS (LE) | 3 |
| PORTZ (LE) | 6 |
| PORZ (LE) | 3 |
| POTPANEN (LE) | 4 |
| POUAZEVARA | 1 |
| POUCHON (LE) | 7 |
| POUDEC (LE) | 1 |
| POUHAER | 1 |
| POULAIN | 1 |
| POULEN (LE) | 5 |
| POULGLAUT | 1 |
| POULHOTER | 20 |
| POULHOTTER | 1 |
| POULLEN (LE) | 9 |
| POULLIQUIN (LE) | 1 |
| POULLOUIN | 46 |
| POULOUIN | 147 |
| POURQUET (LE) | 1 |
| PRADOU | 1 |
| PREDERI | 1 |
| PREDERY | 1 |
| PREVOT (LE) | 1 |
| PRIDO | 3 |
| PRIDOU | 50 |
| PRIGENT | 8 |
| PRIMA | 1 |
| PRODIGUE | 1 |
| PROVOST (LE) | 1 |
| PUT (LE) | 74 |
| QUEC (LE) | 1 |
| QUEHE | 1 |
| QUEHEC | 1 |
| QUELEN | 3 |
| QUELEN DE | 10 |
| QUELEN DU | 1 |
| QUEMAREC (LE) | 1 |
| QUEMENER | 1 |
| QUENQUIS | 1 |
| QUENTRIC | 5 |
| QUERAMBLOCH | 1 |
| QUERAY | 1 |
| QUERE | 11 |
| QUERE (LE) | 39 |
| QUERED | 1 |
| QUERGUS | 3 |
| QUERIAN | 1 |
| QUERJAN | 1 |
| QUERLAN | 5 |
| QUERNEAU | 3 |
| QUERNO | 3 |
| QUERO | 7 |
| QUEROMES | 2 |
| QUEROU | 39 |
| QUERRET | 2 |
| QUERRIEN | 5 |
| QUILBIGNON | 8 |
| QUILGARS | 21 |
| QUINIART | 1 |
| QUINIAT (LE) | 1 |
| QUINTIN | 41 |
| QUINTRIC | 3 |
| RABBE | 1 |
| RABE | 1 |
| RABIN | 1 |
| RADENEN | 5 |
| RAISON | 1 |
| RALLON | 4 |
| RALON | 4 |
| RAMOND | 1 |
| RAOUL | 28 |
| RAOULIN | 1 |
| RAOULLIN | 1 |
| RAOULT | 34 |
| RAU | 1 |
| RAULIN | 2 |
| RAULT | 8 |
| RAVAT | 1 |
| RAVAT (LE) | 2 |
| REBOUR | 2 |
| REBOURS | 1 |
| REGNAULT | 4 |
| REMINIAC | 1 |
| REMOND | 3 |
| RENAULT | 1 |
| RENAUT | 1 |
| RENE | 11 |
| RENOT | 16 |
| RHUMEUR | 2 |
| RICHARD | 4 |
| RICHART | 1 |
| RICHOM | 1 |
| RIO | 2 |
| RIOALAN | 1 |
| RIOALLAN | 1 |
| RIOU | 17 |
| RIOUALAN | 3 |
| RIVALAN | 13 |
| RIVALLAN | 4 |
| RIVOAL | 3 |
| RIVOALAN | 11 |
| RIVOALLAN | 45 |
| RIVOUALAN | 1 |
| ROAULT | 2 |
| ROBERT | 19 |
| ROBIALLE | 1 |
| ROBICHON | 4 |
| ROBIN | 57 |
| ROCHAER DU | 1 |
| ROCHCAZRE DU | 3 |
| ROGER | 1 |
| ROHAN (LE) | 15 |
| ROI (LE) | 5 |
| ROIAU | 1 |
| ROIO | 1 |
| ROIS (LE) | 5 |
| ROLLAND | 41 |
| ROLLANTAU | 1 |
| ROLLIOU | 1 |
| ROPARTZ | 1 |
| ROPERS | 13 |
| ROPERT | 3 |
| ROPERTZ | 1 |
| ROT | 1 |
| ROUAULT | 17 |
| ROUDAULT | 1 |
| ROUDOT | 2 |
| ROUGE (LE) | 3 |
| ROUS (LE) | 3 |
| ROUSEL | 2 |
| ROUSIC (LE) | 1 |
| ROUSSEL | 12 |
| ROUTIER (LE) | 1 |
| ROUX (LE) | 74 |
| ROUXEL | 24 |
| ROUZ (LE) | 2 |
| ROUZIC (LE) | 3 |
| ROY (LE) | 82 |
| ROYAU | 4 |
| ROYAUX | 1 |
| ROYO | 1 |
| ROZIER | 1 |
| RUDUILLER (LE) | 1 |
| RUGUEN (LE) | 1 |
| RUMEUR DU | 1 |
| SAGE (LE) | 1 |
| SAGNOU | 1 |
| SAINT (LE) | 7 |
| SAINT-JALMES | 1 |
| SAINTCAS | 1 |
| SALAUN | 14 |
| SALIOU | 6 |
| SALLIOU | 2 |
| SALLOU | 4 |
| SALO | 2 |
| SALOU | 7 |
| SAOZ (LE) | 1 |
| SAULNIER (LE) | 1 |
| SAUX (LE) | 9 |
| SCOL | 1 |
| SCOLAN | 3 |
| SECH (LE) | 1 |
| SEHAN | 23 |
| SEIGNAU | 2 |
| SERANDOUR | 2 |
| SERASTI | 1 |
| SERFF (LE) | 1 |
| SERGAUT (LE) | 1 |
| SERGENT (LE) | 13 |
| SERILLE (LE) | 1 |
| SERVAUDE DE | 1 |
| SEVENNEC (LE) | 1 |
| SICLE | 10 |
| SICLEZ | 1 |
| SIDANER (LE) | 1 |
| SIGUILLON | 3 |
| SIGUILLON (LE) | 1 |
| SIMON | 1 |
| SOAVET (LE) | 2 |
| SOLAU | 1 |
| SOLEU (LE) | 4 |
| SOLIMAN | 7 |
| SOLLO | 2 |
| SOLLOU | 1 |
| SOLLU (LE) | 1 |
| SOLO | 4 |
| SOLOU | 2 |
| SOLU (LE) | 1 |
| SOMMIER (LE) | 2 |
| SOUAVET | 1 |
| SOULIMAN | 23 |
| SOULIMENT | 4 |
| STEUN | 6 |
| STEUNOU | 1 |
| SUAVE (LE) | 1 |
| SYMON | 1 |
| TAINGUI | 1 |
| TAINGUY | 5 |
| TALEC (LE) | 3 |
| TALLEC (LE) | 4 |
| TAMIC | 2 |
| TANEVET (LE) | 1 |
| TANGUI | 2 |
| TANGUY | 53 |
| TARDIVEL | 1 |
| TARTIVEL | 38 |
| TASS | 1 |
| TATON | 27 |
| TATON (LE) | 1 |
| TEFAUT | 1 |
| TEFF (LE) | 2 |
| TEFFAU | 6 |
| TEFFO | 1 |
| TERESIEN | 1 |
| TERTRE (LE) | 2 |
| TEUEGAIN | 11 |
| TEUFF (LE) | 5 |
| TEULEUBY | 1 |
| THALAMART | 2 |
| THARUEL | 1 |
| THEFAOU | 1 |
| THEFAU | 1 |
| THEFOU | 1 |
| THEPAULT | 2 |
| THERESIEN | 4 |
| THEROU | 1 |
| THEULEBY | 1 |
| THIERRY | 2 |
| THOMAS | 173 |
| THOMAS (LE) | 1 |
| THOUCLIN | 1 |
| THOUEMENT | 7 |
| THOUENON | 1 |
| TIEC (LE) | 3 |
| TIRAN (LE) | 1 |
| TIRANT (LE) | 6 |
| TIRCOCQ | 1 |
| TORAVAL | 1 |
| TOUBOULLIC | 1 |
| TOUDIC | 5 |
| TOUEMENT | 5 |
| TOULIC | 1 |
| TOULLIC | 3 |
| TOULOUSE | 3 |
| TOULOUSOU | 3 |
| TOULOUZOU | 1 |
| TOUPIN | 16 |
| TOURNEMINE | 1 |
| TOUS (LE) | 2 |
| TOUSE (LE) | 3 |
| TOUZAY | 1 |
| TRAU (LE) | 3 |
| TREAN | 3 |
| TREANT | 1 |
| TREBETEL | 6 |
| TREBOUTA | 3 |
| TREGUIER | 4 |
| TREHAN | 2 |
| TREHEN | 2 |
| TREHIO | 3 |
| TREHIOU | 9 |
| TREUST (LE) | 5 |
| TREVIDIC (LE) | 1 |
| TREVOAN | 3 |
| TRICOT | 1 |
| TRICOT (LE) | 4 |
| TROADEC (LE) | 4 |
| TROCQUER (LE) | 1 |
| TROQUER (LE) | 7 |
| TRUTAULT | 2 |
| TRUTOST | 1 |
| TURBAN | 195 |
| TURBIN | 1 |
| TURPIN | 2 |
| TURQUET | 2 |
| TYRANT (LE) | 1 |
| ULIAC | 6 |
| ULLIAC | 1 |
| URIAC | 1 |
| URIAN | 4 |
| URIEN | 13 |
| URO | 24 |
| URVOA | 1 |
| URVOY | 8 |
| VACON (LE) | 1 |
| VAILLANT | 1 |
| VAILLANT (LE) | 28 |
| VALLY (LE) | 1 |
| VANNEL | 1 |
| VELER (LE) | 18 |
| VELLER (LE) | 6 |
| VERN (LE) | 3 |
| VERY | 1 |
| VESIER (LE) | 1 |
| VESSIER | 2 |
| VEY (LE) | 3 |
| VEZIE | 1 |
| VIAN | 11 |
| VIDEMENT | 1 |
| VINCENT | 99 |
| VISDELOU | 1 |
| VITEL | 2 |
| VITTE | 1 |
| VITTU | 1 |
| VOAS (LE) | 1 |
| VOGUER (LE) | 48 |
| VOULAY | 1 |
| YVONET | 5 |
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