| Name | # Entries |
|---|---|
| Coetzee | 2064 |
| Chetty | 1996 |
| Cloete | 1069 |
| Coetzer | 664 |
| Cronje | 581 |
| Cele | 568 |
| Conradie | 565 |
| Cupido | 380 |
| Cilliers | 366 |
| Chauke | 344 |
| Cell | 343 |
| Campbell | 329 |
| Collins | 327 |
| Cassim | 303 |
| Claassen | 302 |
| Clark | 293 |
| Clarke | 288 |
| Carstens | 270 |
| Claasen | 256 |
| Cooper | 254 |
| Cox | 219 |
| Carelse | 217 |
| Crous | 205 |
| Calitz | 188 |
| Cornelius | 181 |
| Cohen | 179 |
| Cook | 179 |
| Combrink | 174 |
| Charles | 168 |
| Costa | 154 |
| Chapman | 146 |
| Carter | 131 |
| Combrinck | 126 |
| Carolus | 116 |
| Clayton | 110 |
| Coleman | 108 |
| Carr | 108 |
| Christians | 104 |
| Cameron | 103 |
| Crafford | 101 |
| Cunningham | 94 |
| Coller | 93 |
| Cole | 92 |
| Campher | 91 |
| Chen | 90 |
| Claassens | 90 |
| Carrim | 86 |
| Cross | 85 |
| Cooke | 80 |
| Cajee | 80 |
| Christie | 79 |
| Correia | 78 |
| Classen | 78 |
| Cyster | 76 |
| Cassiem | 76 |
| Coertzen | 76 |
| Crawford | 75 |
| Colyn | 73 |
| Cornelissen | 73 |
| Cindi | 71 |
| Crouse | 69 |
| Currie | 67 |
| Coetsee | 66 |
| Cawood | 66 |
| Coetser | 66 |
| Christian | 65 |
| Craig | 63 |
| Chambers | 63 |
| Cebekhulu | 63 |
| Cordier | 60 |
| Cowan | 58 |
| Chiloane | 58 |
| Collett | 53 |
| Chellan | 52 |
| Crause | 51 |