- Coleman
- Colgan
- Colitses
- Collett
- Colliatie
- Collidge
- Collier
- Colligan
- Collingwood
- Collins
- Collipriest
- Colllins
- Colt
- Coltman
- Colvin
- Combs
- Comeau
- Comee
- Comfort
- Comstock
- Conant
- Conard
- Concklin
- Conde
- Condon
- Conent
- Coney
- Conklin
- Connell
- Connelly
- Conner
- Connery
- Connors
- Conoryea
- Conover
- Conrad
- Conron
- Consla
- Constantino
- Conway
- Cook
- Cooke
- Cookman
- Cooksey
- Coolaw
- Coolbaugh
- Cooley
- Coolidge
- Coombs
- Coon