Lyon - Rhône-Alpes
- Colliard
- Colliat
- Collombon
- Colone
- Coma
- Combaropoulos
- Combaz
- Combo
- Come
- Comi
- Commandeur
- Commaret
- Communal
- Comoy
- Compain
- Compan
- Comparat
- Confavreux
- Constance
- Contard
- Contardo
- Copy
- Coquaz
- Corallo
- Corazzini
- Corbineau
- Corda
- Cordani
- Cordeiro
- Cordelle
- Cormerais
- Cornic
- Cornudet
- Coron
- Corond
- Coronel
- Corpet
- Cortet
- Cortey
- Cossalter
- Costache
- Costantini
- Costet
- Costilles
- Cottel
- Cottier
- Cottinet
- Cotty
- Couder
- Coudeyras
- Coudry
- Coullet
- Courbier
- Courbiere
- Courchinoux
- Couret
- Courmont
- Courtine
- Courty
- Coussat
- Couston
- Cout
- Coutiaux
- Coutier
- Coutin
- Couvert
- Coze
- Crabos
- Crassard
- Crenn
- Cressot
- Creusy
- Crevat
- Creveaux
- Crost
- Crouigneau
- Crozat
- Crucho Mota
- Crucho-mota
- Cubells
- Cuenot
- Cueto
- Cuisinier
- Cunha
- Cuoq
- Curbet
- Cure
- Curty
- Curvat
- Cuypers
- Cuzenard
- Cyrot
- Côte
- d'almeida
- d'amico
- d'angelo
- Da Conceicao
- Da Cunha de Macedo
- Da Luz
- Dabboura
