Paris - Île-de-France
- Coblence
- Cocheton
- Codaccioni
- Coeurderoy
- Cohen de Lara
- Cohen-salmon
- Cohendet
- Cohet
- Coignet
- Cojan
- Colucci
- Combaluzier
- Combres
- Combret
- Comes
- Compper
- Condat
- Conesa
- Cong
- Conroy
- Contamine
- Contassot
- Coolen
- Coppens
- Coppet
- Coppolani
- Coq
- Coquille
- Cor
- Cordin
- Cordon
- Corera
- Coriou
- Corniere
- Cornil
- Corpechot
- Corrales
- Corso
- Cortese
- Cortial
- Corticchiato
- Cortot
- Corvez
- Corvol
- Cosnefroy
- Cossé
- Costa de Beauregard
- Costanza
- Costedoat
- Costet
- Cotonnec
- Coucaud
- Coudrier
- Couedel
- Coullet
- Coumes
- Coupey
- Coupin
- Couralet
- Courcelle
- Courcelles
- Courreges
- Courtille
- Coury
- Coutanceau
- Coutelier
- Coutellier
- Coutier
- Couvelaire
- Couvez
- Covindassamy
- Covos
- Coyne
- Coze
- Cozzi
- Cozzolino
- Cransac
- Craquelin
- Cras
- Crehange
- Creignou
- Crepel
- Crete
- Creton
- Creux
- Croissant
- Cross
- Cruchet
- Cruciani
- Crusson
- Cubaynes
- Cuenca
- Cuer
- Curis
- Curto
- Cymerman
- D Aboville
- D Almeida
- D Andrea
- d'alessandro