| Cabaniss, Bessie | 6-4-1918 | Lynched | Walker | Huntsville, TX | n/a | ||
| Cabaniss, Cute | 6-4-1918 | Lynched | Walker | Huntsville, TX | n/a | ||
| Cabaniss, Sarah | 6-4-1918 | Lynched | Walker | Huntsville, TX | n/a | ||
| Cabaniss, Tenola | 6-4-1918 | Lynched | Walker | Huntsville, TX | n/a | ||
| Cabaniss, Thomas | 6-4-1918 | Lynched | Walker | Huntsville, TX | n/a | ||
| Cadena, Frank | 5-23-1924 | Electrocuted | Bexar | Huntsville, TX | 11 | Murder | |
| Caesar, Johnnie | 5-21-1939 | Electroctued | Dallas | Huntsville, TX | 214 | Rape | |
| Caldwell, Jeffery | 8-30-2000 | Lethal Injection | Dallas | Huntsville, TX | 938 | Multiple-Murder | |
| Calhoun, Mark Henry | 6-17-1938 | Electrocuted | Dallas | Huntsville, TX | 199 | Rape | |
| Callins, Bruce | 5-21-1997 | Lethal Injection | Tarrant | Huntsville, TX | 717 | Robbery | |
| Camacho, Jr. Genaro | 8-26-1998 | Lethal Injection | Brazos | Huntsville, TX | 972 | Murder | |
| Canedo, Salenes | 10-28-1938 | Electrocuted | Bexar | Hunstville, TX | 192 | Murder | |
| Cannon, Joseph | 4-22-1998 | Lethal Injection | Bexar | Huntsville, TX | 634 | Burglary | |
| Cantrell, Pierson | 12-6-1935 | Electrocuted | Wood | Huntsville, TX | 158 | Murder | |
| Cantu, Andrew | 2-16-1999 | Lethal Injection | Taylor | Huntsville, TX | 999 | Multiple-Murder | |
| Cantu, Jr. Domingo | 10-28-1999 | Lethal Injection | Dallas | Huntsville, TX | 924 | Rape | |
| Cantu, Ruben | 8-24-1993 | Lethal Injection | Bexar | Huntsville, TX | 804 | Robbery | |
| Carrasco, Antonio | 10-23-1936 | Electrocuted | Hudspeth | Huntsville, TX | 175 | Murder | |
| Carr, Albert | 6-7-1935 | Electrocuted | Harris | Huntsville, TX | 145 | Rape | |
| Carr, Henry | 1-3-1936 | Electrocuted | Tyler | Huntsville, TX | 161 | Murder | |
| Carr, Melton | 1-2-1926 | Electrocuted | Walker | Huntsville, TX | 25 | Rape | |
| Carter, Earl | 5-31-2000 | Lethal Injection | Bastrop | Huntsville, TX | 999091 | Multi-murder | |
| Carter, Robert | 5-18-1998 | Lethal Injection | Harris | Huntsville, TX | 708 | Robbery | |
| Casey, Gerald | 4-18-2002 | Lethal Injection | Montgomery | Huntsville, TX | 999013 | Robbery | |
| Castillo, David | 8-23-1998 | Lethal Injection | Hidalgo | Huntsville, TX | 770 | Robbery | |
| Cernock, Lewis | 7-12-1935 | Electrocuted | Williamson | Huntsville, TX | 148 | Murder | |
| Chambers, Tony | 11-15-2000 | Lethal Injection | Smith | Huntsville, TX | 999009 | Kidnapping | |
| Chappell, Andrew "Buck" | 3-18-1896 | Hanged | Austin | Bellville, TX | n/a | Murder | |
| Clark, Charles | 3-25-1954 | Electrocuted | Tom Green | Huntsville, TX | 371 | Murder | |
| Clark, David | 2-28-1992 | Lethal Injection | Brazos | Huntsville, TX | 874 | Multiple Murder | |
| Clark, Herman | 12-6-1994 | Lethal Injection | Harris | Huntsville, TX | 715 | Rape | |
| Clark, Jack | 1-9-2001 | Lethal Injection | Lubbock | Huntsville, TX | 994 | Rape | |
| Clayton, James | 5-25-2000 | Lethal Injection | Taylor | Huntsville, TX | 921 | Robbery | |
| Clayton, Joseph | 7-?-1834 | Hanged | ? | ? | ? | Murder | |
| Cline, Lonnie | 1-2-1948 | Electrocuted | Dallas | Huntsville, TX | 296 | Murder | |
| Cockrum, John | 9-30-1997 | Lethal Injection | Bowie | Huntsville, TX | 854 | Robbery | |
| Coleman, Clydell | 5-5-1999 | Lethal Injection | McLennan | Huntsville, TX | 968 | ||
| Coleman, John | 7-18-1948 | Electrocuted | Gregg | Huntsville, TX | 304 | Rape | |
| Cook, Anthony | 2-16-1999 | Lethal Injection | Milam | Huntsville, TX | 918 | Robbery | |
| Cook, Frank | 1-27-1938 | Electrocuted | Huntsville, TX | Captain Joe Byrd Cemetery, Huntsville, Texas. | |||
| Cook, Tobe | 6-10-1892 | Lynched | Bastrop | Bastrop, TX | n/a | ||
| Cook, Tom | 12-19-1933 | Electrocuted | Harris | Huntsville, TX | 118 | Murder | |
| Cooks, Vincent | 12-12-2001 | Lethal Injection | Dallas | Huntsville, TX | 927 | Robbery | |
| Cordova, George | 2-10-1999 | Lethal Injection | Bexar | Huntsville, TX | 706 | Rape | |
| Cordova, Joe | 1-22-1992 | Lethal Injection | Harris | Huntsville, TX | 730 | Robbery | |
| Corwin, Daniel | 12-7-1998 | Lethal Injection | Montgomery | Huntsville, TX | 969 | ||
| Crane, Alvin | 10-12-1999 | Lethal Injection | Denton | Huntsville, TX | 888 | Murder | |
| Crank, Denton | 6-14-1994 | Lethal Injection | Harris | Huntsville, TX | 803 | Robbery | |
| Crawford, Foster | 2-25-1896 | Lynching | Wichita | Wichita Falls, TX | n/a | ||
| Cross, Jack | 1857 | Lynched | Calcasieu River, TX | n/a | Murder | ||
| Cruz, Javier | 10-1-1998 | Lethal Injection | Bexar | Huntsville, TX | 999061 | ||
| Cruz, Oliver | 8-9-2000 | Lethal Injection | Bexar | Huntsville, TX | 954 | ||
| Cuevas, Ignacio | 5-23-1991 | Lethal Injection | Harris | Huntsville, TX | 525 | Murder | |
| Curry, Tommie | 4-17-1924 | Electrocuted | Smith | Huntsville, TX | 9 | Murder |