- Crawley
- Creech
- Creed
- Creighton
- Crenshaw
- Crery
- Crider
- Crigler
- Crim
- Crippen
- Crisci
- Cristman
- Criswell
- Crittenden
- Crocker
- Crockett
- Crocoll
- Croes
- Croff
- Crofftey
- Cromwell
- Cronin
- Cronkhite
- Crooks
- Crosby
- Cross
- Crossett
- Crossland
- Crossman
- Crosswell
- Crouse
- Crowder
- Crowell
- Crowley
- Crozier
- Crudo
- Crum
- Crumb
- Crump
- Crusen
- Crussett
- Cryder
- Cudahy
- Cuddie
- Culbertson
- Cullen
- Culver
- Culverwell
- Cummings
- Cummins
- Cunningham
- Cuolahan
- Curren
- Currie
- Currier