Paris - Île-de-France
- Castry
- Casula
- Catan
- Catanese
- Catanzano
- Catelin
- Cathelain
- Cattalano
- Catteloin
- Cattez
- Cattoni
- Catz
- Caucanas
- Caudiere
- Caudrillier
- Caullet
- Cauly
- Cauret
- Caurette
- Caussat
- Cautela
- Cauwel
- Cauwet
- Cavalié
- Cavallier
- Cavan
- Cavaroc
- Cavayé
- Cavazzini
- Cayet
- Cayot
- Cayzac
- Cazalaa
- Cazalas
- Cazaubon
- Cazedepats
- Cazemajour
- Cazilhac
- Cazor
- Cebe
- Cecconi
- Cece
- Cecilia
- Ceddaha
- Cedroni
- Celano
- Celia
- Celie
- Celini
- Cellerier
- Celnikier
- Celotto
- Cemin
- Centaure
- Centonze
- Cerasa
- Cercle
- Cerneau
- Cernogora
- Cert
- Cessat
- Cessay
- Cester
- Ceylan
- Ceyrat
- Cha
- Chaari
- Chabal
- Chabance
- Chabannais
- Chabasseur
- Chabauty
- Chabernaud
- Chabira
- Chabiron
- Chabloz
- Chaboisson
- Chabroux
- Chaby
- Chacornac
- Chadenier
- Chadi
- Chadwick
- Chaffai
- Chafii
- Chagnard
- Chagnollaud
- Chagnot
- Chaguiboff
- Chahin
- Chaignaud
- Chailleux
- Chailley
- Chaillon
- Chairi
- Chakri
- Chalaal
- Chalak
- Chalamet
- Chalbos