Marseille - Provence-Alpes-Côte d'Azur
- Ciosi
- Ciotola
- Ciotti
- Cipres
- Ciravegna
- Cireddu
- Cirera
- Cirilli
- Cirinesi
- Cirinna
- Cirino
- Cismondo
- Cisneros
- Cissokho
- Civallero
- Civel
- Civera
- Cizelle
- Cizeron
- Clade
- Clain
- Clamon
- Clance
- Clapes
- Clara Caetano
- Clarasso
- Clares
- Clarisse
- Clarte
- Clasen
- Claudepierre
- Claudet
- Claudine
- Clausen
- Clauss
- Clauws
- Clauzon
- Clavaret
- Clavaud
- Clemence
- Cleon
- Clerge
- Clerget
- Clerin
- Cleronomides
- Cleuet
- Cleyet-marel
- Climent
- Clio
- Clipet
- Cloe
- Cloix
- Cloridor
- Cloteaux
- Clou
- Clouet
- Cloute
- Clovis
- Cnudde
- Coadalen
- Coat
- Cocci
- Cocco
- Cochefert
- Cocordan
- Cocordano
- Codani
- Codde
- Coder
- Codino
- Codur
- Coeffe
- Coelho Correia
- Coen
- Coetto
- Coeugnet
- Coffano
- Coffe
- Coffy
- Cognata
- Cogne
- Cogoni
- Cohen Bacry
- Cohen Sabban
- Cohen Skalli
- Cohen Tannoudji
- Cohen-adad
- Cohen-addad
- Cohen-bacri
- Coiffeur
- Coiffic
- Coillet Matillon
- Coindre
- Cointre
- Coiplet
- Coiton
- Coja
- Cojocaru
- Colapinto
- Colasanto