Paris - Île-de-France
- Cicognani
- Cier
- Ciesla
- Ciezar
- Cifuentes
- Cilpa
- Cimetiere
- Cimma
- Cinquini
- Cintract
- Ciocca
- Ciofi
- Ciofolo
- Cioni
- Ciornei
- Ciraolo
- Cirelli
- Cirot
- Cirrincione
- Cissako
- Citadelle
- City
- Ciulla
- Ciup
- Civiero
- Civil
- Civis
- Cizeau
- Clairice
- Clairotte
- Clamy
- Clancy
- Clapot
- Clappier
- Clarens
- Claret de Fleurieu
- Claris
- Clasquin
- Clatot
- Claudeon
- Claudine
- Clausener
- Claussmann
- Claustrat
- Claustres
- Clauvel
- Clauzade
- Clauzier
- Clauzon
- Claver
- Claviere
- Clavijo
- Clayer
- Clec'h
- Clement Grandcourt
- Clementi
- Clements
- Clementz
- Clemessy
- Cleofe
- Cler
- Clerempuy
- Clergerie
- Clerice
- Clerima
- Clerin
- Cleva
- Clever
- Clevering
- Clichy
- Clier
- Clinquart
- Clipal
- Clipet
- Clocher
- Clochon
- Clodomir
- Closier
- Cloteaux
- Clouet Des Pesruches
- Cloup
- Cloute
- Clovis
- Clozier
- Cléaud
- Clélia
- Clémence
- Co Invest Sas
- Coadic
- Coatanlem
- Coatantiec
- Cobigo
- Cobti
- Coca
- Cocaign
- Cocard
- Cocault-duverger
- Cocco
- Cochereau
- Cocheril
