| Name | # Entries |
|---|---|
| Anderson | 2809 |
| Adams | 2006 |
| Allen | 1424 |
| Abrahams | 1405 |
| Andrews | 1154 |
| Alexander | 1085 |
| Armstrong | 1058 |
| Allan | 814 |
| Atkinson | 631 |
| Austin | 555 |
| A | 537 |
| Arendse | 520 |
| Arnold | 520 |
| Aitken | 514 |
| Andrew | 440 |
| Ahmed | 411 |
| Adv | 391 |
| Ali | 378 |
| Archer | 357 |
| Arthur | 340 |
| Adam | 337 |
| Abbott | 321 |
| Allison | 319 |
| Anthony | 318 |
| Atkins | 303 |
| Adamson | 297 |
| Ally | 285 |
| Ashby | 279 |
| Auckland | 269 |
| Aswegen | 254 |
| Alberts | 252 |
| Andersen | 235 |
| Abraham | 235 |
| Adonis | 233 |
| Agnew | 204 |
| Aldridge | 203 |
| Africa | 203 |
| Amod | 197 |
| Avery | 193 |
| Ackerman | 171 |
| April | 157 |
| Angus | 153 |
| Asmal | 152 |
| Abel | 147 |
| Ashley | 141 |
| All | 139 |
| Amos | 139 |
| Ackermann | 135 |
| Abernethy | 134 |
| Aitchison | 132 |
| Aucamp | 130 |
| Alpine | 130 |
| As | 130 |
| Archibald | 125 |
| Albertyn | 124 |
| Anglican | 116 |
| Ash | 114 |
| Albert | 111 |
| Adlam | 109 |
| Armitage | 108 |
| Arends | 107 |
| Alpha | 104 |
| Appleton | 104 |
| Auto | 102 |
| Alcock | 102 |
| Aardt | 101 |
| Abdullah | 99 |
| Air | 98 |
| Askew | 98 |
| Ami | 97 |
| Addison | 97 |
| Ansell | 96 |
| Allie | 96 |
| Appleby | 93 |
| Aston | 92 |