| PATRONYME | FREQUENCE |
| ADAM | 1 |
| ALANO | 1 |
| ALANOU | 2 |
| ALLAIN | 13 |
| ALLANET | 7 |
| ALLANNET | 2 |
| ALLANNIC | 17 |
| ALLANNOU | 24 |
| ALLANOU | 7 |
| ALLER | 3 |
| AMIS | 3 |
| ANDRE | 91 |
| ANSQUER | 52 |
| ANTOINE | 2 |
| ARTHUR | 2 |
| AUFFRET | 100 |
| AUFRET | 2 |
| AUGEL | 14 |
| AUGES | 2 |
| BAHIC | 5 |
| BAIL (LE) | 40 |
| BALLOIR | 5 |
| BANNER (LE) | 2 |
| BANNIER | 5 |
| BARAZER | 1 |
| BARBU (LE) | 19 |
| BARNABAR | 1 |
| BARON | 1 |
| BARRON (LE) | 3 |
| BARS (LE) | 55 |
| BARSIC (LE) | 3 |
| BARZ (LE) | 2 |
| BARZIC (LE) | 96 |
| BASIL | 30 |
| BASQUE (LE) | 1 |
| BATSCAF | 1 |
| BAUDOUR (LE) | 1 |
| BAUJART | 3 |
| BAZIL | 41 |
| BAZILE | 1 |
| BEAUJARD | 1 |
| BEAUREGARD de | 3 |
| BECH (LE) | 1 |
| BELEC | 11 |
| BELEGO (LE) | 2 |
| BELEGOU (LE) | 2 |
| BELLEC | 264 |
| BELLEC (LE) | 10 |
| BELLEGO (LE) | 2 |
| BELLEGOU (LE) | 6 |
| BENACH | 2 |
| BENECH | 22 |
| BENJAMIN | 3 |
| BENNACH | 1 |
| BERDER | 1 |
| BERE (LE) | 1 |
| BERLIN | 4 |
| BERNARD | 24 |
| BEROCHE | 3 |
| BERRE (LE) | 11 |
| BERREZAI | 3 |
| BERROCH | 1 |
| BERTHELOT | 13 |
| BERVET (LE) | 17 |
| BERZAI | 4 |
| BERZE | 1 |
| BESC (LE) | 2 |
| BESCAU | 5 |
| BESCONT | 1 |
| BESCONT (LE) | 2 |
| BESQ (LE) | 19 |
| BESQUE (LE) | 18 |
| BESSONET de | 1 |
| BESSONNET | 4 |
| BEUBRY | 2 |
| BEUF (LE) | 8 |
| BEUFF (LE) | 19 |
| BEUZIT (LE) | 19 |
| BIAN (LE) | 2 |
| BIANNIC (LE) | 3 |
| BIDAMAN | 1 |
| BIDAMAND | 4 |
| BIDAMANT | 52 |
| BIDAMENT | 12 |
| BIDEMAND | 1 |
| BIDEMANT | 1 |
| BIDEMENT | 1 |
| BIDORE(?) | 1 |
| BIGNANT (LE) | 9 |
| BIGREL | 1 |
| BIHAN (LE) | 26 |
| BIHANIC (LE) | 1 |
| BIHANNIC (LE) | 6 |
| BILIOU | 5 |
| BILLIOU | 10 |
| BINET | 4 |
| BINIGUER (LE) | 1 |
| BIRIOU | 1 |
| BISEC | 1 |
| BIZEC (LE) | 2 |
| BLAIJAN | 1 |
| BLAIS | 7 |
| BLAIVENNEC (LE) | 1 |
| BLANCHARD | 3 |
| BLAYS | 1 |
| BLEGEAN | 1 |
| BLEJAN | 27 |
| BLEVENNEC (LE) | 6 |
| BOBONY | 6 |
| BOCHER | 12 |
| BODIN | 2 |
| BODSCAVE (LE) | 1 |
| BOEDEC (LE) | 15 |
| BOETTE (LE) | 39 |
| BOEUF (LE) | 1 |
| BOEZARD | 1 |
| BOISEDAN | 5 |
| BOISEDEN | 1 |
| BOISSY | 1 |
| BOJARD | 1 |
| BOLLOCH | 2 |
| BOLLOCH (LE) | 202 |
| BOLOCH (LE) | 16 |
| BON (LE) | 1 |
| BONANT | 1 |
| BONBONY | 1 |
| BONIEC (LE) | 13 |
| BONNA (LE) | 4 |
| BONNAN | 1 |
| BONNANT (LE) | 2 |
| BONNEAU | 1 |
| BONNIEC | 2 |
| BONNIEC (LE) | 112 |
| BONNIEC (LE)? | 1 |
| BONNOA (LE) | 3 |
| BONNYEC (LE) | 19 |
| BONOA (LE) | 3 |
| BONUA | 1 |
| BONUA (LE) | 3 |
| BONVOA | 1 |
| BONVOA (LE) | 4 |
| BONVOY (LE) | 1 |
| BORGNE (LE) | 6 |
| BOSCAF (LE) | 2 |
| BOSCAVE | 1 |
| BOSEC (LE) | 2 |
| BOSTCAF | 1 |
| BOTCAF | 1 |
| BOTCAF (LE) | 2 |
| BOTCAO (LE) | 1 |
| BOTCAZEO | 1 |
| BOTGUEZIL | 1 |
| BOTHOA | 1 |
| BOTHOAS | 2 |
| BOTSAF | 1 |
| BOTSCAF | 5 |
| BOTSCAF (LE) | 8 |
| BOTSCAFF | 2 |
| BOTSCAFF (LE) | 1 |
| BOTSCAO (LE) | 9 |
| BOTSCAVE | 2 |
| BOTSCAVE (LE) | 4 |
| BOTSCAZOU | 2 |
| BOUAYS du | 8 |
| BOUCHER | 1 |
| BOUCHER (LE) | 1 |
| BOUDER | 4 |
| BOUDER (LE) | 2 |
| BOUEDEC | 1 |
| BOUEDEC (LE) | 1 |
| BOUESADAN | 1 |
| BOUESARD | 2 |
| BOUETE (LE) | 8 |
| BOUETTE (LE) | 8 |
| BOUGEANT | 1 |
| BOUGEANT (LE) | 1 |
| BOUGEARD | 1 |
| BOUGET | 179 |
| BOUGUET | 7 |
| BOUJET | 20 |
| BOULBIN (LE) | 40 |
| BOULE | 3 |
| BOULLE | 2 |
| BOUNYEC (LE) | 13 |
| BOUR (LE) | 1 |
| BOURBLANC (LE) | 1 |
| BOURCHIS (LE) | 1 |
| BOURDONEC (LE) | 7 |
| BOURDONNEC | 2 |
| BOURDONNEC (LE) | 114 |
| BOURGUEN (LE) | 3 |
| BOURHIS (LE) | 3 |
| BOURIC | 12 |
| BOURRE (LE) | 1 |
| BOURVOEN (LE) | 4 |
| BOUT | 13 |
| BOUTSCAO | 1 |
| BOUTTE | 1 |
| BOZEC | 3 |
| BOZEC (LE) | 17 |
| BRAS (LE) | 79 |
| BRASIC (LE) | 2 |
| BRAZ (LE) | 1 |
| BRAZIC (LE) | 3 |
| BRE | 7 |
| BRET (LE) | 1 |
| BRETON | 1 |
| BRETON (LE) | 51 |
| BRIAN | 2 |
| BRIAND | 162 |
| BRIANT | 24 |
| BRIANT (LE) | 2 |
| BRICON (LE) | 24 |
| BRIEND | 3 |
| BRIGANT (LE) | 2 |
| BRIOU | 38 |
| BRIS (LE) | 22 |
| BRISEC (LE) | 2 |
| BRIZEC (LE) | 16 |
| BROCHER | 1 |
| BROCHER (LE) | 18 |
| BRUAL | 6 |
| BRUJAN | 2 |
| BRUJAN (LE) | 1 |
| BRUJANT (LE) | 1 |
| BRULE | 3 |
| BRUN (LE) | 43 |
| BUAN (LE) | 9 |
| BUCHO | 1 |
| BUHAN (LE) | 6 |
| BUSSIERE DE LA | 11 |
| BUZULIER (LE) | 2 |
| CABEC (LE) | 3 |
| CABOCO | 3 |
| CABON (LE) | 13 |
| CADEC | 61 |
| CADIOU | 27 |
| CADOALEN | 1 |
| CADORET | 1 |
| CAER (LE) | 3 |
| CAILLETE | 4 |
| CAILLEUR (LE) | 28 |
| CALENNEC | 1 |
| CALLEC | 3 |
| CALLOET | 1 |
| CALLOUET (LE) | 2 |
| CALVE (LE) | 10 |
| CALVES (LE) | 1 |
| CALVEZ | 2 |
| CALVEZ (LE) | 40 |
| CAM (LE) | 22 |
| CAMART | 2 |
| CAMPION (LE) | 3 |
| CAN | 27 |
| CANE | 2 |
| CANE(?) | 1 |
| CANIVET | 1 |
| CANN | 7 |
| CANNE | 5 |
| CANT (LE) | 1 |
| CAPITAINE | 2 |
| CARADEC | 10 |
| CARBOULEC (LE) | 9 |
| CARBOULLEC (LE) | 2 |
| CARE | 1 |
| CAREL | 2 |
| CARELLE | 1 |
| CARFF (LE) | 2 |
| CARIOU | 8 |
| CARRE | 9 |
| CARRIOU | 1 |
| CARS (LE) | 1 |
| CARVENEC (LE) | 1 |
| CARZUNEL (LE) | 49 |
| CAS (LE) | 2 |
| CASTEL | 10 |
| CASTRIN | 1 |
| CAUDAL | 1 |
| CAURET | 17 |
| CAZE (LE) | 24 |
| CAZOURET | 9 |
| CESSON | 4 |
| CEUBYLE | 1 |
| CHAMBRIN | 23 |
| CHAPELAIN | 9 |
| CHAPELAIN (LE) | 1 |
| CHAPONIER (LE) | 4 |
| CHAPONNIER | 1 |
| CHAPONNIER (LE) | 8 |
| CHARLES | 9 |
| CHARNEAU | 2 |
| CHARNOU | 1 |
| CHARY | 3 |
| CHAT (LE) | 1 |
| CHAUVEL | 1 |
| CHELINE | 1 |
| CHENEL | 4 |
| CHENEL (LE) | 1 |
| CHESNEL | 17 |
| CHEURLE (LE)? | 1 |
| CHEVALIER (LE) | 2 |
| CHEVALILIER (LE | 1 |
| CHEVALLIER | 1 |
| CHEVALLIER (LE) | 5 |
| CHEVANCE (LE) | 3 |
| CHEVER (LE) | 1 |
| CHEVOIR (LE) | 8 |
| CHOARIEC (LE) | 2 |
| CHOERF (LE) | 12 |
| CHOERFF (LE) | 6 |
| CHOERO | 1 |
| CHOEROU (LE) | 2 |
| CHOSS(?) | 1 |
| CHOUERF (LE) | 1 |
| CHOUERF (LE)? | 1 |
| CHOUEROU (LE) | 1 |
| CHRISTIN | 5 |
| CITAY | 1 |
| CITE | 1 |
| CLAIRIE/CLAIRIS | 1 |
| CLAIRIN | 4 |
| CLAUDE | 1 |
| CLECH | 64 |
| CLERIN | 7 |
| CLEROUX | 1 |
| CLOAREC | 10 |
| CLOUIN | 24 |
| COADIC | 1 |
| COADOU | 3 |
| COARIDOUC de | 7 |
| COATANROCH | 5 |
| COATANTIEC | 36 |
| COATAREL | 1 |
| COATAROCH | 3 |
| COATENTIEC | 13 |
| COATGUESSEL(?) | 1 |
| COCGUIEC (LE) | 1 |
| COCQ (LE) | 33 |
| COCQUIEC (LE) | 2 |
| COCQUILLOU | 5 |
| COCULO | 2 |
| COELE (LE) | 15 |
| COGUIEC (LE) | 1 |
| COIC | 3 |
| COIC (LE) | 2 |
| COIGNAC (LE) | 2 |
| COJEAN | 6 |
| COLAS | 111 |
| COLEN (LE) | 1 |
| COLET | 3 |
| COLIN | 11 |
| COLIOU | 3 |
| COLLAS | 50 |
| COLLE (LE) | 4 |
| COLLEN | 2 |
| COLLET | 6 |
| COLLIN | 4 |
| COLLOEC (LE) | 28 |
| COLONT | 1 |
| COLVEZ | 8 |
| COLVEZ (LE) | 1 |
| COMBOUT | 12 |
| CONAN | 104 |
| CONGAR | 45 |
| CONGARD | 13 |
| CONGARS | 13 |
| CONIAC | 3 |
| CONNAN | 48 |
| CONNIAC (LE) | 2 |
| CONTELLEC | 1 |
| CONTELLEC (LE) | 19 |
| COQ (LE) | 3 |
| COQUIL (LE) | 9 |
| COQUILLARD | 13 |
| COQUILLOU | 55 |
| COR (LE) | 3 |
| CORANGUER | 2 |
| CORBEL | 4 |
| CORBIN | 12 |
| CORE (LE) | 1 |
| CORENGUER | 4 |
| CORET | 1 |
| CORET(?) | 1 |
| CORGNEAU | 27 |
| CORGNOU | 3 |
| CORLAY | 1 |
| CORLOUER | 10 |
| CORNANGUER | 33 |
| CORNAU | 2 |
| CORNEC | 1 |
| CORNEC (LE) | 20 |
| CORNENGUER | 2 |
| CORNIAU | 2 |
| CORNIAU/CORNIOU | 1 |
| CORNIC | 75 |
| CORNIO | 3 |
| CORNIOU | 38 |
| CORNLOUER | 3 |
| CORNOU | 6 |
| CORRE (LE) | 41 |
| CORRE (LE)? | 1 |
| CORSON | 4 |
| CORVEGER (LE) | 1 |
| CORVEZOU (LE) | 2 |
| COS (LE) | 1 |
| COSIC | 1 |
| COSIC (LE) | 1 |
| COSJAN | 1 |
| COSSIN | 1 |
| COSSON | 3 |
| COSTIOU | 9 |
| COTEL | 3 |
| COTIN | 4 |
| COTTIN | 13 |
| COUADOU | 1 |
| COUARIDOUC de | 4 |
| COUBOULIC | 3 |
| COUJON (LE) | 1 |
| COUPIL | 1 |
| COUPILLES | 1 |
| COUPIN | 7 |
| COUPLANT | 35 |
| COUPLANTE | 3 |
| COUPPIN | 1 |
| COUPPLANT | 1 |
| COURTES | 2 |
| COURTES (LE) | 8 |
| COUSIN (LE) | 6 |
| COUTANCE | 1 |
| COVERGER (LE) | 2 |
| COZ | 9 |
| COZ (LE) | 5 |
| COZANNET | 11 |
| COZANNET (LE) | 4 |
| COZE | 1 |
| COZIC (LE) | 69 |
| COZIC? (LE)ROY? | 1 |
| CPMBOUT | 1 |
| CRAFER (LE) | 1 |
| CRAFFER (LE) | 4 |
| CRENEGUEL | 6 |
| CRENINGUEL | 1 |
| CRESSON | 1 |
| CREURER (LE) | 43 |
| CREURERE (LE) | 2 |
| CRISTIN | 7 |
| CROCHET | 15 |
| CROCQUEDANT | 9 |
| CROM | 4 |
| CRON | 16 |
| CRONE | 1 |
| CRONNE | 2 |
| CROQUEDANT | 5 |
| CROTE (LE) | 1 |
| CUDENNEC (LE) | 3 |
| CUFF (LE) | 4 |
| CUN (LE) | 3 |
| CUZIAT (LE) | 8 |
| DACIGNE | 12 |
| DAGORN | 5 |
| DALMAR | 2 |
| DAMIA | 1 |
| DANIC | 17 |
| DANIEL | 12 |
| DANNIC | 11 |
| DANNIEL | 1 |
| DANTEC (LE) | 3 |
| DARCILLON(?) | 1 |
| DAVAY | 1 |
| DAVID | 11 |
| DAVY | 3 |
| DEMOUR (LE) | 36 |
| DENIS | 1 |
| DENOEL | 3 |
| DERENNIC | 5 |
| DERIEN | 14 |
| DERIENIC | 8 |
| DERIENIC(?) | 1 |
| DERIENNIC | 1 |
| DEROUINEAU | 1 |
| DERRIEN | 16 |
| DERRIENIC | 11 |
| DERRIENNIC | 38 |
| DOI (LE) | 4 |
| DOLLO | 32 |
| DOLLOU | 1 |
| DOLO | 1 |
| DOLOU | 1 |
| DORNER (LE) | 1 |
| DOUGEAU | 3 |
| DOUGEOU | 1 |
| DOURBRAS (LE) | 1 |
| DOURVER | 1 |
| DOY (LE) | 4 |
| DRINVIER | 1 |
| DRINVIER (LE) | 3 |
| DRIVIER | 1 |
| DRONIOU | 5 |
| DRUILLENNEC (LE | 1 |
| DU (LE) | 20 |
| DUCHENNE | 13 |
| DUEDAL | 91 |
| DUIGOU (LE) | 84 |
| ELARY | 6 |
| ELIEN | 28 |
| EVAIN | 4 |
| EVEN | 14 |
| EVRIER (LE) | 1 |
| EZVOAN | 5 |
| FAGAN | 56 |
| FAGUAN | 1 |
| FALHER | 1 |
| FALHER (LE) | 9 |
| FALLEGAN | 1 |
| FAO (LE) | 3 |
| FAOU (LE) | 2 |
| FAU (LE) | 2 |
| FAUCHEUR | 1 |
| FAUCHEUR (LE) | 1 |
| FAUCON | 2 |
| FAVAER (LE) | 5 |
| FAVE | 2 |
| FAVO (LE) | 2 |
| FECHAN | 1 |
| FECHAT | 1 |
| FEGEAN | 1 |
| FEGER | 5 |
| FEGER (LE) | 3 |
| FEGERE | 1 |
| FEGERE (LE) | 2 |
| FEJAN | 2 |
| FELLE (LE) | 1 |
| FERCHAT | 56 |
| FERLICO | 1 |
| FERLICOCQ | 1 |
| FERLICOQ | 10 |
| FERLICOT | 58 |
| FERS (LE) | 1 |
| FESTOU | 47 |
| FEUBRIER | 1 |
| FEULVARCH | 5 |
| FEVRE (LE) | 1 |
| FICHER | 1 |
| FICHET (LE) | 1 |
| FIGER | 1 |
| FLEM (LE) | 2 |
| FLEURIOT | 1 |
| FLOCH (LE) | 70 |
| FLOCHE (LE) | 2 |
| FLOCHIC (LE) | 1 |
| FLOCHLOAN (LE) | 1 |
| FLOCHMOAN (LE) | 8 |
| FLOUR (LE) | 10 |
| FLOURIOT | 5 |
| FLOURY | 2 |
| FOCON | 5 |
| FOGERON | 5 |
| FOL (LE) | 3 |
| FOLL (LE) | 6 |
| FORECHER (LE) | 5 |
| FORESTIER | 1 |
| FORESTIER (LE) | 7 |
| FORETIER (LE) | 17 |
| FORICHER (LE) | 1 |
| FORTUN | 1 |
| FOUILLER (LE) | 29 |
| FRAVAL | 13 |
| FRIEC (LE) | 1 |
| FROMENTIN | 1 |
| FROUMENTIN | 3 |
| FUGE(?) | 1 |
| FUR (LE) | 33 |
| GAC (LE) | 3 |
| GAL (GALLO) (LE | 1 |
| GAL (LE) | 121 |
| GALES | 22 |
| GALL (LE) | 110 |
| GALLEIC | 6 |
| GALLIC (LE) | 16 |
| GALLO (LE) | 8 |
| GALLOU | 1 |
| GALLOU (LE) | 58 |
| GANIVET | 42 |
| GARDEOT | 3 |
| GAREL | 6 |
| GARELES (LE) | 1 |
| GARELLE | 1 |
| GARERES (LE) | 3 |
| GARF (LE) | 2 |
| GARFF (LE) | 6 |
| GARIGNON | 1 |
| GARLANTEZEC LE | 37 |
| GARLES | 3 |
| GARRE (LE) | 1 |
| GARREL | 1 |
| GARRERES (LE) | 3 |
| GARS (LE) | 2 |
| GAUDEST | 1 |
| GAUDU (LE) | 12 |
| GAULARD | 1 |
| GAULTIER | 1 |
| GAURY | 1 |
| GAUTIER | 6 |
| GEFFROI | 1 |
| GEFFROY | 22 |
| GEGOU | 3 |
| GELDON | 1 |
| GELDON (LE) | 7 |
| GELDONS (LE) | 1 |
| GELGON (LE) | 1 |
| GERAUD | 1 |
| GILIN | 2 |
| GILLAU | 1 |
| GILLIN | 1 |
| GILLOT | 2 |
| GIRAUD | 1 |
| GISTIN (LE) | 1 |
| GLANAER (LE) | 2 |
| GLORENNEC (LE) | 1 |
| GOAEC (LE) | 1 |
| GOAJOU (LE) | 2 |
| GOARIN (LE) | 1 |
| GOAS (LE) | 46 |
| GOASDOUE | 4 |
| GOASIOU (LE) | 6 |
| GOAZ (LE) | 4 |
| GOAZ (LE)? | 2 |
| GOAZIOU | 3 |
| GOAZIOU (LE) | 20 |
| GODEAU | 9 |
| GODEST | 34 |
| GOELAET (LE) | 14 |
| GOELLO | 1 |
| GOELO | 7 |
| GOELOU | 11 |
| GOF (LE) | 4 |
| GOFF (LE) | 249 |
| GOFFIC (LE) | 2 |
| GOIC | 11 |
| GOIC (LE) | 2 |
| GOLVAGER (LE) | 1 |
| GONIDEC (LE) | 3 |
| GORREC (LE) | 3 |
| GOTTER | 3 |
| GOTTIER | 2 |
| GOUARDOU | 1 |
| GOUAYOU (LE)? | 1 |
| GOUCHE (LE) | 14 |
| GOUDIGUEN | 35 |
| GOUELLAET (LE) | 1 |
| GOUELO | 1 |
| GOUELOU | 3 |
| GOUGEON | 1 |
| GOUIEC (LE) | 1 |
| GOUILLOURY | 1 |
| GOUJEON (LE) | 1 |
| GOUJON (LE) | 32 |
| GOUPIL | 5 |
| GOUPILLE | 1 |
| GOURCHAN | 1 |
| GOURHANTE | 1 |
| GOURIERES | 1 |
| GOURIERES (LE) | 4 |
| GOURIOU | 23 |
| GOUS (LE) | 1 |
| GOUSSE (LE) | 1 |
| GOUZ (LE) | 1 |
| GRAND (LE) | 1 |
| GREVE de la | 6 |
| GRONE | 1 |
| GRONTEC (LE) | 3 |
| GROUIEC (LE) | 18 |
| GROUIERES (LE) | 5 |
| GRUIEC (LE) | 1 |
| GUEGAN | 81 |
| GUEGUEN | 1 |
| GUELAAT (LE) | 1 |
| GUELLAD (LE) | 1 |
| GUELLAET | 1 |
| GUELLAET (LE | 1 |
| GUELO | 2 |
| GUELOU | 1 |
| GUEN (LE) | 394 |
| GUENANEN | 17 |
| GUENNEC (LE) | 19 |
| GUERN | 5 |
| GUERN (LE) | 9 |
| GUERNE (LE) | 2 |
| GUERNIOU | 5 |
| GUERRIER | 1 |
| GUERROGUES | 1 |
| GUESENNEC | 11 |
| GUET (LE) | 1 |
| GUEVEL | 3 |
| GUEVEL (LE) | 18 |
| GUEVELLOU (LE) | 11 |
| GUEZENNEC | 102 |
| GUIADER (LE) | 73 |
| GUIAUMAR | 5 |
| GUICHARD (LE) | 2 |
| GUICHER | 1 |
| GUICHER (LE) | 4 |
| GUIEL (LE) | 6 |
| GUIGUEN | 13 |
| GUILCHER | 2 |
| GUILCHER (LE) | 17 |
| GUILGARS | 2 |
| GUILLAOUIC | 4 |
| GUILLARD (LE) | 9 |
| GUILLARMIC | 10 |
| GUILLART (LE) | 1 |
| GUILLAUME | 6 |
| GUILLEMOT | 8 |
| GUILLERMIC | 5 |
| GUILLERMIC (LE) | 2 |
| GUILLOC (LE) | 1 |
| GUILLOIC | 2 |
| GUILLORY | 5 |
| GUILLOSO (LE) | 1 |
| GUILLOSSOU | 7 |
| GUILLOU | 25 |
| GUILLOU (LE) | 73 |
| GUILLOUIC | 12 |
| GUILLOUIC (LE) | 1 |
| GUILLOURI | 3 |
| GUILLOURY | 33 |
| GUILLOUS (LE) | 12 |
| GUILLOUSSE (LE) | 2 |
| GUILLOUX (LE) | 26 |
| GUILLOUZIC | 1 |
| GUINAMANT | 1 |
| GUINCHE | 2 |
| GUINGE | 1 |
| GUINS | 1 |
| GUIOMAR | 56 |
| GUIOMARCH | 6 |
| GUIOMARD | 3 |
| GUIOMART | 2 |
| GULLUCH (LE) | 2 |
| GULLUCHE (LE) | 1 |
| GULUCHE (LE) | 1 |
| GUO (LE) | 3 |
| GUOELO | 1 |
| GURLUCH (LE) | 1 |
| GURLUCHE (LE) | 4 |
| GUYADEC (LE) | 1 |
| GUYADER | 3 |
| GUYADER (LE) | 66 |
| GUYOMAR | 24 |
| GUYOMARD | 24 |
| GUYONMARCH | 1 |
| HACHIVERE | 1 |
| HACQUART | 2 |
| HAGUEZ | 1 |
| HAMARD | 1 |
| HAMART | 5 |
| HAMON | 56 |
| HAMONO | 8 |
| HAMONOU | 1 |
| HARCOET | 1 |
| HARSCOET | 9 |
| HARZUNEL (LE) | 1 |
| HELAN | 2 |
| HELARY | 22 |
| HELEN | 27 |
| HELLARY | 1 |
| HELLEQUIN | 3 |
| HELLOU | 9 |
| HENAFF (LE) | 2 |
| HENGOAT | 6 |
| HENRY | 221 |
| HENRY (LE) | 2 |
| HERAND | 1 |
| HERLIDOU | 1 |
| HERLO | 1 |
| HERNOT | 5 |
| HEROU | 1 |
| HERRO | 1 |
| HERVE | 26 |
| HERVE (LE) | 39 |
| HERVE ? (LE) | 1 |
| HERVE(?) | 1 |
| HERVEIC | 5 |
| HERVEIC (LE) | 1 |
| HERVEZ | 1 |
| HERVEZ (LE) | 1 |
| HERVIEU | 1 |
| HERVIOT | 1 |
| HERVIOU | 50 |
| HERVOU | 5 |
| HILIEN (ELIEN) | 1 |
| HILION | 1 |
| HILLIEN | 1 |
| HILLIEN (ILLIEN | 1 |
| HILLION | 5 |
| HIRAN | 5 |
| HOANEN (LE) | 4 |
| HOANNEN (LE) | 4 |
| HOARIEC (LE) | 29 |
| HOENEN (LE) | 1 |
| HOERF (LE) | 42 |
| HOERFF (LE) | 26 |
| HOEROU (LE) | 14 |
| HOERVE (LE) | 1 |
| HOIRFF (LE) | 1 |
| HOUERF (LE) | 4 |
| HOUERFF | 1 |
| HOUERFF (LE) | 3 |
| HOUEROU (LE) | 6 |
| HOUSSAYE de la | 30 |
| HUBEDAS | 1 |
| HUBERT | 9 |
| HUEL | 8 |
| HUEL (LE) | 3 |
| HUEROT (LE) | 2 |
| HUEROU (LE) | 7 |
| HUET | 28 |
| HUNOA | 1 |
| HUON | 37 |
| HUONIC | 28 |
| HUONNIC | 15 |
| HURVOIS | 1 |
| HYRAN | 1 |
| HYRAND | 1 |
| ILLIEN | 92 |
| IRAN | 23 |
| IRAND | 13 |
| IRANT | 2 |
| JAC | 3 |
| JACQ | 129 |
| JACQUES | 5 |
| JACQUET | 2 |
| JAGU | 9 |
| JAGUIN | 14 |
| JAHANIC | 1 |
| JAMBRIN | 27 |
| JAN | 6 |
| JAN (LE) | 13 |
| JANIN | 13 |
| JANIN(?) | 1 |
| JANNE (LE) | 1 |
| JANNIC | 9 |
| JANNIN | 41 |
| JANNO | 1 |
| JANNOU | 1 |
| JANOU | 1 |
| JAOUANART | 1 |
| JAOUENET | 1 |
| JAQUE | 1 |
| JARNAU | 11 |
| JARNEAU | 3 |
| JARNO | 3 |
| JARNOU | 4 |
| JARY | 1 |
| JAUNAUD | 1 |
| JEAN (LE) | 13 |
| JEANNIN | 15 |
| JEANNOU | 1 |
| JEFFROY | 5 |
| JEGAU(?) | 1 |
| JEGO | 1 |
| JEGOU | 150 |
| JEQUEL | 3 |
| JEROME | 1 |
| JESEQUEL | 2 |
| JEZEQUEL | 46 |
| JEZOU | 1 |
| JODEC (LE) | 2 |
| JODEC (LE)? | 1 |
| JOLIF (LE) | 3 |
| JOLIFF (LE) | 2 |
| JOLIVET(?) | 1 |
| JOLLU (LE) | 1 |
| JOLU (LE) | 8 |
| JOSE | 1 |
| JOSSE | 26 |
| JOUAN | 7 |
| JOUANARD | 1 |
| JOUANNE (LE) | 1 |
| JOUANNET | 2 |
| JOUENARD | 1 |
| JOUHANNARD | 2 |
| JOUHIN | 1 |
| JOUIN | 31 |
| JOURAND | 14 |
| JUBAS | 5 |
| JUDEF (LE) | 1 |
| JUDEO (LE) | 1 |
| JUDER (LE) | 1 |
| JUGON | 9 |
| JUIFF (LE) | 6 |
| JULLOU | 3 |
| JULO | 3 |
| JULOU | 7 |
| JUNTER (LE) | 7 |
| KERAMBRUN | 15 |
| KERANGAL | 13 |
| KERANMANACH | 1 |
| KERBOCAS | 1 |
| KERBRUN | 1 |
| KERDANIEL de | 1 |
| KEREL | 2 |
| KERELLAO | 1 |
| KERELLAU | 27 |
| KERELLE | 8 |
| KERELLO | 62 |
| KERELLOU | 37 |
| KERELOU | 8 |
| KERELOU(?) | 1 |
| KERENEL | 1 |
| KEREVEL | 1 |
| KERFANT | 18 |
| KERFANTE | 1 |
| KERFORN | 4 |
| KERGAL | 1 |
| KERGUILLAY DE ? | 1 |
| KERGUS | 33 |
| KERHAIS | 1 |
| KERHUEL | 1 |
| KERLAU | 19 |
| KERLO | 18 |
| KERLOT | 1 |
| KERMARQUER de | 5 |
| KERMEL de | 8 |
| KERNEAU | 2 |
| KERNEAU (LE) | 1 |
| KERNEF (?) | 1 |
| KERNEN | 1 |
| KERNEO | 1 |
| KERNEOU | 1 |
| KERNIN | 2 |
| KERNIVINEN | 63 |
| KERNIVIVEN | 1 |
| KEROGUES | 2 |
| KEROMEN | 6 |
| KEROMES | 1 |
| KERREL | 1 |
| KERRO | 1 |
| KERSACH | 1 |
| KERSACH (LE) | 1 |
| KERSOLES | 1 |
| LABAT | 52 |
| LABBAT | 3 |
| LABBIA | 2 |
| LABIA | 16 |
| LACHEVER | 1 |
| LACHIVER | 3 |
| LAGADDU | 1 |
| LAGADEC (LE) | 87 |
| LAGATDU (LE) | 9 |
| LAHAIE | 1 |
| LAHAY | 2 |
| LAHOUSSAYE de | 1 |
| LAISOUR (LE) | 1 |
| LAIZE | 1 |
| LAIZE (LE) | 5 |
| LAIZEC (LE) | 1 |
| LAIZOUR (LE) | 5 |
| LALES | 2 |
| LALEZ | 1 |
| LAMANDE | 6 |
| LAMIDAN | 1 |
| LAMIDON | 4 |
| LAN (LE) | 5 |
| LANCIEN | 4 |
| LANDOIS | 24 |
| LANGLAIS | 1 |
| LANIVEL | 1 |
| LANLO | 3 |
| LANNE (LE) | 1 |
| LANNO | 11 |
| LANNO (LE) | 4 |
| LANNOU | 4 |
| LANNOU (LE) | 2 |
| LANO | 1 |
| LANOU | 1 |
| LAOUENAN | 1 |
| LAOUENAN (LE) | 1 |
| LARCHIVER | 4 |
| LARCONNAY | 1 |
| LARD (LE) | 14 |
| LARIVAIN | 5 |
| LARIVIN | 5 |
| LARMET | 5 |
| LARMET (LE) | 1 |
| LARSONNEUR | 5 |
| LAUDE (?) | 1 |
| LAUNAY | 1 |
| LAURANCE | 6 |
| LAURANS | 1 |
| LAURENCE | 30 |
| LAURENT | 8 |
| LAURES | 5 |
| LAVENAN | 1 |
| LAVERGEO (?) | 1 |
| LAVUEC | 4 |
| LAY (LE) | 39 |
| LE GOAS | 1 |
| LEIJOUR (LE) | 1 |
| LEIZE (LE) | 1 |
| LEIZOUR (LE) | 41 |
| LENEZ | 2 |
| LEON | 9 |
| LEOZEC (LE) | 1 |
| LEROY de | 1 |
| LESCOP | 2 |
| LESFAUX | 1 |
| LEUGUISTIN | 3 |
| LEUGUSTIN | 1 |
| LEUVRIER | 7 |
| LEUVRIER (LE) | 2 |
| LEVEQUE | 1 |
| LEVERER (LE) | 1 |
| LEVIER (LE) | 7 |
| LEVRIER (LE) | 18 |
| LEYSOUR (LE) | 4 |
| LEYZOUR (LE) | 1 |
| LEZ (LE) | 2 |
| LEZE (LE) | 3 |
| LHERMITTE | 1 |
| LHERVE | 3 |
| LHEVEDER | 1 |
| LHOSTELLIER | 20 |
| LHOSTIS | 15 |
| LIGNE (LE) | 7 |
| LIORZO (LE) | 4 |
| LIRZIN | 5 |
| LOANES | 4 |
| LOANNES | 2 |
| LOIS | 1 |
| LOLIEROU | 2 |
| LOLIVIER | 4 |
| LOLLIEROU | 4 |
| LOLLIVIER | 4 |
| LONGEART | 3 |
| LONGEAU | 1 |
| LOQUET | 2 |
| LOQUETTE | 1 |
| LORANCE | 15 |
| LORANCE(?) | 1 |
| LORANS | 4 |
| LORENCE | 2 |
| LORGEET | 8 |
| LORGERE | 3 |
| LORGERET | 5 |
| LORGOUILLOUX | 1 |
| LORRIER | 2 |
| LOSTIS | 21 |
| LOUAR (?) (LE) | 1 |
| LOUARER (LE) | 1 |
| LOUARN (LE) | 24 |
| LOUEDEC (LE) | 2 |
| LOUET (LE) | 12 |
| LOUGUISTIN | 2 |
| LOURGOUILLOUX | 11 |
| LOZAIC | 1 |
| LUCAS | 43 |
| MABOU | 5 |
| MACON (LE) | 6 |
| MAGUET (LE) | 5 |
| MAHE | 67 |
| MAL (LE) | 14 |
| MALARGE | 2 |
| MALCAVET | 21 |
| MALEGOL | 6 |
| MALEGOLE | 1 |
| MALLEGOL | 1 |
| MALLEGOLL | 1 |
| MANACH | 3 |
| MANACH (LE) | 16 |
| MANCHEC (LE) | 9 |
| MANDON | 1 |
| MANSEC | 1 |
| MAOUT (LE) | 11 |
| MARCHADOUR (LE) | 5 |
| MAREC | 10 |
| MAREC (LE) | 35 |
| MARION | 1 |
| MAROS | 3 |
| MAROSE | 2 |
| MARQUER | 3 |
| MARQUES | 1 |
| MARREC | 1 |
| MARREC (LE) | 1 |
| MARTIN | 137 |
| MARTIN-MERIADEC | 27 |
| MASE/MAHE | 1 |
| MASEO | 2 |
| MASSON (LE) | 5 |
| MAT (LE) | 1 |
| MAT---? | 1 |
| MATHIEU | 1 |
| MATORZEC | 1 |
| MAULT (LE) | 1 |
| MAURICE | 23 |
| MAUT (LE) | 6 |
| MAUVIEL | 2 |
| MAUX (LE) | 1 |
| MAZAVET | 1 |
| MAZE | 1 |
| MAZEAU | 16 |
| MAZEO | 6 |
| MAZEO (OU MAHE) | 1 |
| MAZEU | 1 |
| MAZEVE | 1 |
| MAZEVET | 7 |
| MAZO (LE) | 1 |
| MEHAUTE | 33 |
| MEJAN | 3 |
| MELEDER (LE) | 6 |
| MELOUX | 5 |
| MEN (LE) | 11 |
| MENARD | 2 |
| MENER (LE) | 7 |
| MENGUY | 18 |
| MERCER (LE) | 1 |
| MERCIER | 2 |
| MERCIER (LE) | 34 |
| MERDY | 14 |
| MERDY (LE) | 1 |
| MERIADEC | 14 |
| MERIEN | 1 |
| MERIEN DIT HUON | 14 |
| MERRIEN | 10 |
| MERSER (LE) | 1 |
| MESJAN | 10 |
| MEUBRY | 15 |
| MEUDIC | 1 |
| MEUR (LE) | 24 |
| MEURIC | 7 |
| MEVEL (LE) | 2 |
| MEZEC (LE) | 1 |
| MEZJAN | 1 |
| MICHEAU | 4 |
| MICHEAUT(?) | 1 |
| MICHEL | 23 |
| MIGNOT (LE) | 2 |
| MILBEO | 1 |
| MILIN (LE) | 2 |
| MILINAU | 1 |
| MILINNO | 1 |
| MILLONNET | 1 |
| MILON | 20 |
| MINDREN | 2 |
| MINGUY | 8 |
| MINOUX (LE) | 88 |
| MIRON | 10 |
| MIRON (MILON) | 1 |
| MIRONNE | 1 |
| MIRONNET | 2 |
| MOAL (LE) | 58 |
| MOALLOU(?) | 1 |
| MOAN (LE) | 3 |
| MOGNE (LE) | 8 |
| MOGNET | 2 |
| MOIGN (LE) | 10 |
| MOIGNE (LE) | 15 |
| MOIGNE du | 8 |
| MOIGNET | 36 |
| MOIGNET (LE) | 2 |
| MOINE (LE) | 1 |
| MOING du | 1 |
| MOIS de | 1 |
| MOISAN | 49 |
| MOIZAN | 6 |
| MONFORT | 78 |
| MONIN(?) | 1 |
| MONJOA | 2 |
| MONJOAS | 2 |
| MONJOI | 1 |
| MONJOIE | 3 |
| MONJOUAN | 1 |
| MONJOUAN (LE) | 6 |
| MONJOY | 1 |
| MORAND | 2 |
| MORANT | 4 |
| MORANT (LE) | 1 |
| MORDELET | 6 |
| MORDELLET | 1 |
| MORELEC (LE) | 2 |
| MORELLEC (LE) | 3 |
| MORFOISE | 1 |
| MORFOISSE | 1 |
| MORGEET | 1 |
| MORICE | 16 |
| MORIN | 1 |
| MORLEC (LE) | 1 |
| MORVAN | 16 |
| MORVAN (LE) | 3 |
| MORVANIC | 25 |
| MOYS de | 1 |
| MOYSAN | 13 |
| MOYZAN | 1 |
| NABAT (LE) | 9 |
| NANNET (LE) | 1 |
| NAOUR (LE) | 1 |
| NAOURES (LE) | 92 |
| NARMES (LE) | 3 |
| NATUR (LE) | 2 |
| NAUTHOUR (LE) | 1 |
| NEGARET (LE) | 1 |
| NEN (LE) | 1 |
| NESCOP (LE) | 1 |
| NEUN (LE) | 1 |
| NEVEZ (LE) | 1 |
| NICOL | 58 |
| NICOLAS | 72 |
| NICOLE | 1 |
| NICOLLAS | 6 |
| NICOLLE | 2 |
| NOAN (LE) | 12 |
| NOANNES (LE) | 57 |
| NOCH (LE) | 2 |
| NOH (LE) | 1 |
| NONES (LE) | 3 |
| NORMAND (LE) | 25 |
| NORMANT (LE) | 1 |
| NOSACH (LE) | 1 |
| NOUETER (LE)? | 1 |
| OANEN (LE) | 1 |
| OFFRET | 9 |
| OGEL | 1 |
| OLIVIER | 11 |
| OLIVIER-HENRY | 1 |
| OLLIEROU | 5 |
| OLLIVIER | 114 |
| OLLIVIER-HENRI | 1 |
| OLLIVIER-HENRI? | 1 |
| OLLIVIER-HENRY | 12 |
| OMBLES | 1 |
| OMNES | 16 |
| PACHE (LE) | 3 |
| PADEL | 10 |
| PAGE | 2 |
| PAGE (LE) | 46 |
| PAIRON | 1 |
| PAPE | 2 |
| PAPE (LE) | 126 |
| PAPPE (LE) | 18 |
| PARANTON | 1 |
| PARC (LE) | 11 |
| PARISCOAT | 19 |
| PARQUER | 3 |
| PARQUIER | 2 |
| PASQUIOU | 7 |
| PASTOL | 57 |
| PAUL (OU POL) | 1 |
| PELLIER | 1 |
| PEN | 4 |
| PENANCOAT | 1 |
| PENANLAN | 9 |
| PENAULT | 1 |
| PENENLAN | 1 |
| PENHENLANNE | 1 |
| PENHOAT | 3 |
| PENNEC (LE) | 18 |
| PERCH | 21 |
| PERCH (LE) | 1 |
| PERCHE | 6 |
| PERCHEC (LE) | 90 |
| PERENES | 1 |
| PERENNES | 2 |
| PERIER du | 1 |
| PERIN | 1 |
| PERON | 7 |
| PERON (LE) | 7 |
| PERON(?) | 1 |
| PEROT | 1 |
| PERRENNES | 1 |
| PERRIN | 2 |
| PERRODOU | 4 |
| PERRON | 6 |
| PERRON (LE) | 2 |
| PERROT | 52 |
| PERSONNIC | 12 |
| PETIBON | 1 |
| PEUCH | 1 |
| PEUCH (LE) | 110 |
| PEUROU | 1 |
| PEZRON | 5 |
| PHILIPPE | 108 |
| PICARD | 4 |
| PICARD (LE) | 16 |
| PICART (LE) | 8 |
| PICHARD (LE) | 1 |
| PICOLLAU | 11 |
| PICOLLOU | 4 |
| PIERES (LE) | 2 |
| PIERRE | 1 |
| PIGEON | 1 |
| PILORGET | 12 |
| PINEL (LE) | 1 |
| PINET | 8 |
| PINIC (LE) | 1 |
| PINNET | 3 |
| PINNIC (LE) | 1 |
| PINVIC (LE) | 2 |
| PINVIDIC (LE) | 2 |
| PIQUART (LE) | 4 |
| PIRIOU | 15 |
| PIVAIN (LE) | 2 |
| PLADEC (LE) | 2 |
| PLOUIN | 3 |
| PLUEN | 5 |
| PLUNET | 1 |
| PLUSQUELLEC | 2 |
| POASEVARA | 2 |
| POCHAT | 12 |
| POESSEL | 1 |
| POESSON | 2 |
| POHAER (LE) | 6 |
| POHE | 1 |
| POISSON | 1 |
| POL | 3 |
| POMMELET | 1 |
| PON (LE) | 32 |
| PONTOU (LE)? | 1 |
| PORCHEL | 1 |
| PORCHEL (LE) | 22 |
| PORCHERON | 31 |
| PORHEL (LE) | 10 |
| PORSAU | 1 |
| POULAIN (LE) | 2 |
| POULEN (LE) | 10 |
| POULLEN (LE) | 6 |
| POULLIQUEN | 6 |
| POULOUIN | 1 |
| POURHIET (LE) | 1 |
| POURVEER (LE) | 14 |
| PRIGENT | 163 |
| PRIGENT (LE) | 1 |
| PRIJEANT | 1 |
| PRIMA | 12 |
| PROVOST | 1 |
| PROVOST (LE) | 3 |
| PROVOT (LE) | 2 |
| PUT (LE) | 2 |
| QUARSUNEL (LE) | 2 |
| QUARTIER | 1 |
| QUAY (LE) | 5 |
| QUEFEULOU | 1 |
| QUELEDUR(?) | 1 |
| QUELEN | 1 |
| QUELLEC | 1 |
| QUELLEC (LE) | 3 |
| QUELO | 1 |
| QUEMAREC (LE) | 6 |
| QUEMENER (LE) | 30 |
| QUEMENER(?) | 1 |
| QUEMENTE (LE) | 1 |
| QUENQUIS (LE) | 1 |
| QUERANEC | 1 |
| QUERANGAL | 1 |
| QUERE | 5 |
| QUERE (LE) | 90 |
| QUERE (LE)? | 2 |
| QUEREL | 2 |
| QUERELAU | 1 |
| QUERELLAU | 1 |
| QUERELLE | 2 |
| QUERELLO | 38 |
| QUERELLOU | 13 |
| QUERELO | 6 |
| QUERELOU | 9 |
| QUERFANT | 1 |
| QUERIEN(?) | 1 |
| QUERIN | 1 |
| QUERMAREC | 1 |
| QUERNEF | 11 |
| QUERNEO | 1 |
| QUERNEUC | 1 |
| QUERNIVINEN | 1 |
| QUEROMEN | 1 |
| QUERONES | 1 |
| QUERRE (LE) | 5 |
| QUERREL | 1 |
| QUERRELE | 1 |
| QUERZAC | 1 |
| QUEVAREC (LE) | 4 |
| QUIGNAT (LE) | 1 |
| QUIGUEN | 2 |
| QUIGUER | 2 |
| QUIGUIEN(?) | 1 |
| QUILGARS | 118 |
| QUILLEC (LE) | 1 |
| QUILLEC (LE)? | 1 |
| QUINQUIS (LE) | 1 |
| QUONIAC (LE) | 1 |
| QUOSSON | 1 |
| RADENEN | 15 |
| RADENNEN | 1 |
| RALAN (?) | 1 |
| RALLEC(?) | 1 |
| RALLON | 9 |
| RALON | 4 |
| RALON ? | 1 |
| RANNOU | 7 |
| RAOUL | 115 |
| RAOULT | 4 |
| RASAVET (LE) | 2 |
| RAYMOND | 3 |
| RAZAVET | 1 |
| RAZAVET (LE) | 2 |
| REBILLARD | 2 |
| REGAY (LE) | 1 |
| REGNAULT | 2 |
| REGNAUT | 4 |
| REGNOT | 1 |
| REGUAY | 1 |
| REGUE (LE) | 7 |
| RENAULT | 2 |
| RENAUT | 1 |
| RENOT | 2 |
| RENOUARD | 1 |
| RIBOTTER (LE) | 1 |
| RICHARD | 17 |
| RICHART | 11 |
| RICHOU(?) | 1 |
| RIOU | 172 |
| RIVOAL | 2 |
| RIVOALAN | 1 |
| RIVOALEN | 1 |
| ROBIN | 55 |
| ROGE | 6 |
| ROGER | 7 |
| ROI (LE) | 9 |
| ROLAN | 4 |
| ROLAN(?) | 2 |
| ROLAN? | 2 |
| ROLAND | 2 |
| ROLET | 1 |
| ROLLAN | 4 |
| ROLLAN (LE) | 1 |
| ROLLAN(?) | 3 |
| ROLLAND | 85 |
| ROLLAND (LE) | 30 |
| ROMP | 1 |
| ROMPT | 1 |
| ROPARS | 4 |
| ROPARTZ | 2 |
| ROPARTZ(?) | 1 |
| ROPERS | 28 |
| ROPERTS | 2 |
| ROPERTZ | 5 |
| ROPERZ | 1 |
| ROPPERTS | 2 |
| ROPPERTZ | 14 |
| ROSPABU | 1 |
| ROSTREN | 1 |
| ROULET | 1 |
| ROUSIC (LE) | 4 |
| ROUSSEL | 5 |
| ROUX (LE) | 173 |
| ROUXEL | 33 |
| ROUZIC (LE) | 23 |
| ROY (LE) | 77 |
| ROY (LE) de? | 1 |
| RUDUILLER (LE) | 1 |
| RUDUILLIER (LE) | 1 |
| RUDULIER (LE) | 2 |
| RUDULLIER (LE) | 2 |
| RUFFLAY (LE) | 1 |
| RUGOC(?) | 1 |
| RUNEVEZ (LE) | 5 |
| SACH (LE) | 14 |
| SAIN (LE) | 1 |
| SAINCT (LE) | 1 |
| SAINT (LE) | 8 |
| SALAMON | 2 |
| SALIOU | 2 |
| SANFAO (LE) | 30 |
| SAOZ (LE) | 1 |
| SAUDRAY | 4 |
| SAULX (LE) | 2 |
| SAUX (LE) | 41 |
| SAVEAN | 6 |
| SAVEANT | 4 |
| SAVIDAN | 3 |
| SCANFF (LE) | 1 |
| SCOARNEC | 1 |
| SCOARNIC (LE) | 2 |
| SCOERNIC | 1 |
| SCOERNIC (LE) | 1 |
| SCOLAN | 3 |
| SEBILLE | 23 |
| SECH (LE) | 11 |
| SERNAIS DIT BLA | 1 |
| SESSON | 4 |
| SEUBILE | 5 |
| SEUBY (SEBILLE) | 1 |
| SIMOIN | 1 |
| SIMON | 55 |
| SIMONET | 2 |
| SITAIS | 1 |
| SIVY | 2 |
| SOLIMAN | 2 |
| SOMIER (LE) | 1 |
| SOMMIER | 1 |
| SOMMIER (LE) | 1 |
| SON (LE) | 3 |
| SOS (LE) | 1 |
| SOUFFLES | 21 |
| SOULIMAN | 5 |
| SOULIMANT | 5 |
| SOULIMENT | 1 |
| SOZ (LE) | 2 |
| STEFO | 1 |
| STEPHAN | 42 |
| STEUN | 2 |
| STEUNOU | 1 |
| SYLVESTRE | 1 |
| SYLVESTRE DIT B | 3 |
| SYMON | 4 |
| TACON | 3 |
| TACON (LE) | 6 |
| TADIA DIT LAMBA | 3 |
| TADIE | 9 |
| TADIE DIT LAMBA | 1 |
| TADIER | 5 |
| TAILLANDY | 8 |
| TALDU (LE) | 1 |
| TALEC (LE) | 2 |
| TALLEC (LE) | 7 |
| TANAF (LE) | 1 |
| TANGUY | 70 |
| TARTIVEL | 18 |
| TASSE | 4 |
| TAVEZ | 2 |
| TAVIGNON (LE) | 1 |
| TAVIGNON de | 1 |
| TEPAULT | 12 |
| TEPOT | 2 |
| TEURNIER (LE) | 1 |
| THEPAULT | 12 |
| THEPAUT | 1 |
| THIEC (LE) | 3 |
| THOMAS | 92 |
| THOMAS (LE) | 4 |
| THOMET (LE) | 2 |
| TIEC | 2 |
| TIEC (LE) | 115 |
| TILLY | 56 |
| TILY | 57 |
| TILY/TILLY | 1 |
| TOANNEN | 1 |
| TOMAS (LE) | 1 |
| TOMET (LE) | 2 |
| TOUBOULIC | 9 |
| TOUDIC | 109 |
| TOULLEC (LE) | 25 |
| TOULLIC | 2 |
| TOUPIN | 21 |
| TOUPPIN | 2 |
| TOUSET (LE) | 1 |
| TOUZET (LE) | 2 |
| TRADADEL | 1 |
| TRAVADEL | 13 |
| TRAVADEL (LE) | 1 |
| TRAVADEN | 6 |
| TRAVADON | 2 |
| TRAVAL | 1 |
| TREGLOS | 1 |
| TREGROS | 1 |
| TREHIOU | 2 |
| TREMEL | 2 |
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| TURQUET | 25 |
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| VAL (LE) | 32 |
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