| Name | # Entries |
|---|---|
| Jessop | 21 |
| Jesters | 20 |
| Jivan | 20 |
| Jafta | 20 |
| Joe | 19 |
| Joines | 19 |
| John's | 19 |
| Januarie | 19 |
| Jo | 19 |
| Jaggard | 19 |
| Jali | 18 |
| Jwara | 18 |
| Jumat | 18 |
| Jephson | 17 |
| Jewell | 17 |
| Jorge | 17 |
| Jattiem | 17 |
| Jagger | 16 |
| Janet | 16 |
| Jaycar | 16 |
| Jerram | 16 |
| Jessep | 16 |
| Jama | 16 |
| Jardin | 15 |
| Joel | 15 |
| Joosten | 15 |
| Jefthas | 15 |
| Jefferys | 15 |
| Jogi | 15 |
| Jhetam | 15 |
| Jemmett | 14 |
| Jimmy | 14 |
| Jean | 14 |
| Joao | 14 |
| Jowell | 14 |
| Jessen | 14 |
| Jonson | 14 |
| Jonsson | 14 |
| Jeon | 13 |
| Jeena | 13 |
| Jillings | 13 |
| Janeke | 13 |
| Jag | 13 |
| Jb | 13 |
| Jagarnath | 13 |
| Jessup | 13 |
| Japan | 13 |
| Jankelowitz | 13 |
| Jory | 12 |
| Joy | 12 |
| Jain | 12 |
| Jefferis | 12 |
| Jae | 12 |
| Jnr | 12 |
| Janssens | 12 |
| Jankowitz | 12 |
| Jeffreys | 12 |
| Jermyn | 12 |
| Judge | 12 |
| Jacques | 12 |
| Jam | 12 |
| Juta | 12 |
| Joiner | 11 |
| Jump | 11 |
| Jenneker | 11 |
| Jaggers | 11 |
| Jamodien | 11 |
| Jennens | 11 |
| Jeptha | 11 |
| Janisch | 11 |
| Jerome | 11 |
| Joass | 11 |
| Julia | 11 |
| Jobo | 11 |
| Jamneck | 10 |