Paris - Île-de-France
- Cosmidis
- Cosnac
- Cosnuau
- Cossio
- Cossutta
- Costa Da Silva
- Costa Darocha
- Costa de Sousa
- Costa Lunga
- Costa Monteiro
- Costabile
- Costadau
- Costalat
- Costaouec
- Costel
- Costeplane
- Costerg
- Costerisant
- Costescu
- Costeseque
- Costevec
- Costey
- Costinot
- Costo
- Costuas
- Cotasson
- Cotelli
- Cotenceau
- Cotentin
- Cotet
- Cothereau
- Cotiche
- Cotier
- Cotigny
- Coto
- Cotorobai
- Cotovici
- Cotrel
- Cotruta
- Cottais
- Cottat
- Cottave
- Cottel
- Cotterlaz
- Cotterlaz Rennaz
- Cottille
- Cotting
- Cotton de Bennetot
- Cottray
- Cotutiu
- Cotxet
- Couacaud
- Couanet
- Couapel
- Couarch
- Couard
- Couarraze
- Coubat
- Coube
- Coubeche
- Coubel
- Coubra
- Coucharriere
- Couche
- Coucoureux
- Coudair
- Couderc-hubert
- Coudeville
- Coudevylle
- Coudeyras
- Coudeyre
- Coudiere
- Coudougnan
- Coudrai
- Coudreuse
- Coudrieu
- Coudron
- Coudroy
- Coudé
- Couec
- Couedelo
- Couedo
- Couerbe
- Coueron
- Couffignal
- Couffin
- Coughlin
- Cougnaud
- Cougnon
- Cougoureux
- Couhadon
- Couhaut
- Couic
- Couillec
- Couix
- Coujard
- Coulau
- Coulboy
- Couleaud
- Coulhon