Troyes 10000 - Champagne-Ardenne
- Bureau
- Burgain
- Burguet
- Burgunder
- Burle
- Caboche
- Cai
- Cailleteau
- Caillieux
- Caillot
- Cain
- Calixte
- Calvo
- Cameau
- Canaud
- Caneparo
- Canivet
- Canquery
- Cantrainne
- Capestan
- Capron
- Carbillet
- Carbonnaux
- Carbonnelle
- Carbonnot
- Carcassin
- Carcassin Romani
- Cardon
- Carmaux
- Caroff
- Carougeat
- Caroujat
- Carrasco
- Carreau
- Carron
- Carrut
- Carton
- Casari
- Caseiro
- Cassavia
- Cassis
- Castor
- Castro
- Catherine
- Catteau
- Cazal
- Cazenave
- Ceder
- Celerier
- Cerone
- Cerpolini
- Cery
- Chabrier
- Chala-vicentini
- Chalicarne
- Chambellant
- Chambrillon
- Chameroy
- Champonnois
- Chaouche
- Chaoui
- Chapot
- Chapput
- Chapuis
- Chardin
- Charlier
- Charonnat
- Charvaux
- Chassagne
- Chatenet
- Chaton
- Chauvier
- Chavarot
- Chavigny
- Chefiare
- Chegdali
- Chen
- Cheneau
- Cherain
- Cherifi
- Chesnin
- Chevallot
- Chevrier
- Chicco
- Chillet
- Chinon
- Choisy
- Chollet
- Chollier
- Chomez
- Chominot
- Chossemier
- Chougny
- Christine
- Christmann
- Chung
- Cian
- Cirillo
- Clarenn
- Clausse