- Cabanaw
- Cage
- Cain
- Calabreese
- Calabrese
- Calder
- Cale
- Calkins
- Callahan
- Calvert
- Campbell
- Cappy
- Cardwell
- Carmichael
- Carpenter
- Carter
- Cartwright
- Carwile
- Case
- Cassidy
- Casteel
- Caswell
- Chambers
- Chandler
- Chappell
- Chastain
- Chasteen
- Chesney
- Chesterfield
- Chiddister
- Childers
- Chitwood
- Choate
- Christy
- Clapham
- Claretto
- Clark
- Clarke
- Clarner
- Clayton
- Cleaver
- Clendening
- Coats
- Cobb
- Cochran
- Cohen
- Colclesser
- Collier
- Colvin
- Combs
- Comingore
- Compton
- Conard
- Conder
- Conklin
- Conley
- Connally
- Connelly
- Conner
- Contompasis
- Conway
- Cook
- Cooley
- Cooper
- Coopersmith
- Corbin
- Cornett
- Cornwell
- Costin
- Cottrill
- Covey
- Cowden
- Cox
- Cracraft
- Craig
- Cramer
- Craney
- Cravens
- Criswell
- Critchlow
- Crittenden
- Crohn
- Cromwell
- Crooks
- Cross
- Crouch
- Crow
- Crowe
- Crum
- Cullison
- Cummings
- Cundiff
- Cunningham
- Curl
- Curtis
- Curts
- Cutshall