- Cousins
- Coutts
- Couture
- Couturie
- Covell
- Covey
- Cowan
- Cowen
- Cowens
- Cowles
- Cowper
- Cox
- Coy
- Coyne
- Cozad
- Cozart
- Cozzens
- Crabtree
- Craft
- Crafts
- Cragan
- Craghead
- Cragin
- Craig
- Crain
- Crall
- Cram
- Cramer
- Cramner
- Cramphorne
- Crampton
- Crandall
- Crandel
- Crandon
- Crane
- Crankshaw
- Cranmer
- Cranton
- Cravens
- Crawford
- Crawley
- Creech
- Creed
- Creighton
- Crenshaw
- Crepi
- Crery
- Crespin
- Crib
- Crider
- Crigler
- Crim
- Crippen
- Crisci
- Crisco
- Crissey
- Cristman
- Criswell
- Crittenden
- Crocker
- Crockett
- Crocoll
- Croes
- Croff
- Crofftey
- Crofut
- Kezia (Abt 1727-Bef 1772)
- Croker
- Cromwell
- Cronin
- Cronkhite