| Name | # Entries |
|---|---|
| Campbell | 2416 |
| Clark | 2371 |
| Coetzee | 2194 |
| Cooper | 1870 |
| Clarke | 1842 |
| Carter | 1450 |
| Chetty | 1436 |
| Cook | 1421 |
| Cameron | 1411 |
| Collins | 1406 |
| Chapman | 1202 |
| Cloete | 1086 |
| Cox | 1055 |
| Crawford | 904 |
| Craig | 763 |
| Cunningham | 741 |
| Cronje | 716 |
| Coleman | 690 |
| Cross | 680 |
| Cole | 679 |
| Carr | 638 |
| Currie | 536 |
| Chen | 533 |
| Christie | 516 |
| Curtis | 511 |
| Cooke | 471 |
| Chambers | 468 |
| Cassim | 454 |
| Conradie | 451 |
| Cochrane | 440 |
| Cilliers | 409 |
| Coetzer | 406 |
| Corbett | 404 |
| Carstens | 403 |
| Chan | 396 |
| Carroll | 383 |
| Cullen | 378 |
| Cupido | 371 |
| Calder | 365 |
| Cohen | 364 |
| Cowan | 363 |
| Christensen | 361 |
| Carson | 354 |
| Claassen | 342 |
| Caldwell | 342 |
| Collier | 339 |
| Chamberlain | 339 |
| Casey | 317 |
| Cairns | 309 |
| Clayton | 305 |
| Church | 296 |
| Charles | 287 |
| Clements | 281 |
| Chand | 274 |
| Cumming | 272 |
| Connor | 266 |
| Chalmers | 265 |
| Carey | 265 |
| Chandler | 261 |
| Cornelius | 260 |
| Connolly | 259 |
| Christian | 256 |
| Callaghan | 248 |
| Cele | 248 |
| Crous | 246 |
| Collett | 243 |
| Clarkson | 231 |
| Cotton | 228 |
| Coles | 222 |
| Cassidy | 219 |
| Chisholm | 219 |
| Calitz | 217 |
| Cowie | 217 |
| Croft | 213 |
| Carpenter | 213 |