Troyes 10000 - Champagne-Ardenne
- Buchet
- Buet
- Buirette
- Bureau
- Burgain
- Burgunder
- Burle
- Caboche
- Cacheux
- Cai
- Caillieux
- Cain
- Calixte
- Calvo
- Canaud
- Caneparo
- Canivet
- Canquery
- Cantrainne
- Capron
- Carbonnaux
- Carbonnelle
- Carbonnot
- Carcassin
- Cardon
- Carougeat
- Caroujat
- Carrasco
- Carreau
- Carrut
- Carton
- Caseiro
- Cassavia
- Cassis
- Castro
- Catherine
- Catteau
- Cavalleri
- Cazenave
- Cazier
- Cedelle
- Ceder
- Celerier
- Cerpolini
- Cery
- Chabrier
- Chaffaut
- Chala-vicentini
- Chalicarne
- Chambellant
- Chambrillon
- Champonnois
- Chandellier
- Chaouche
- Chapot
- Chappat
- Chapput
- Chapuis
- Chardinal
- Charlet
- Charvaux
- Chaton
- Chauvier
- Chavigny
- Chayeb
- Chaysinh
- Chazelon
- Chefiare
- Cherain
- Chery
- Chesnin
- Chevrier
- Chibane
- Chicco
- Chinon
- Choisy
- Chollet
- Chollier
- Chomez
- Chominot
- Chossemier
- Chougny
- Christine
- Christmann
- Chung
- Cian
- Ciesla
- Cirillo
- Clarenn
- Clausse
- Clerc
- Clerget
- Clerici
- Clevy
- Cocard
- Cochard
- Coco
- Colbois
- Colle
- Collombet