Paris - Île-de-France
- Cometti
- Comin
- Commere
- Comminges
- Comolli
- Comparat
- Condamin
- Congiu
- Connault
- Console
- Constanty
- Cont
- Contat Desfontaines
- Conter
- Contesso
- Contino
- Convers
- Coppa
- Coquereau
- Coquerelle
- Coraboeuf
- Corcia
- Cordahi
- Corde
- Cordel
- Cordial
- Cordoliani
- Cori
- Coric
- Cormerais
- Corneau
- Cornee
- Cornetto
- Cornevin
- Cornillet
- Corniou
- Cornuat
- Cornuault
- Cornuel
- Cornuot
- Corral
- Corret
- Corsino
- Corveller
- Corvi
- Cosialls
- Cosqueric
- Costanzo
- Costecalde
- Costerousse
- Costi
- Costiou
- Cotard
- Cothenet
- Cotin
- Cotineau
- Cottebrune
- Cottenot
- Cottrel
- Coty
- Couasnon
- Coubes
- Couchet
- Coudreau
- Coudy
- Couget
- Coulier
- Couly
- Coumau
- Coupel
- Coupet
- Couppe
- Couppey
- Couratier
- Courbiere
- Courbot
- Courchinoux
- Courdavault
- Courel
- Couriol
- Cournarie
- Cournet
- Cournil
- Coursier
- Courtaigne
- Courte
- Courtemanche
- Courtheoux
- Coussement
- Cousseran
- Coussot
- Cousteix
- Couston
- Cousy
- Coute
- Coutureau
- Couve
- Couve de Murville
- Couvignou
- Couvrat