| Name | # Entries |
|---|---|
| Jones | 32671 |
| Johnson | 18670 |
| Jackson | 11140 |
| John | 10602 |
| Johnston | 8932 |
| Jenkins | 4647 |
| Joseph | 3301 |
| Jordan | 3083 |
| Johns | 2846 |
| Johnstone | 2796 |
| Jensen | 2667 |
| Jennings | 2440 |
| Joyce | 2266 |
| Jacobs | 2158 |
| Jamieson | 2008 |
| Jarvie | 1842 |
| Jarvis | 1802 |
| Jeffery | 1570 |
| Jiang | 1532 |
| Jeffrey | 1445 |
| Jane | 1333 |
| Jack | 1305 |
| Jung | 1192 |
| Jin | 1171 |
| Jason | 1138 |
| Jansen | 1117 |
| Joy | 1089 |
| Jacob | 1072 |
| Jolly | 999 |
| Judd | 949 |
| Jose | 928 |
| Jarrett | 886 |
| Jorgensen | 804 |
| Jacobson | 757 |
| Jean | 748 |
| Jeffries | 722 |
| Jang | 715 |
| Jenner | 684 |
| Jenkinson | 635 |
| Jeong | 607 |
| Jewell | 606 |
| Joshi | 601 |
| Joshua | 581 |
| Jay | 547 |
| Joe | 547 |
| Jarman | 536 |
| Jenkin | 536 |
| Justin | 527 |
| Jacobsen | 495 |
| Julian | 462 |
| Johansen | 457 |
| Jackman | 444 |
| Jan | 440 |
| Janssen | 436 |
| Jeffs | 432 |
| Jolley | 423 |
| Jardine | 423 |
| Judge | 419 |
| Jim | 409 |
| Jain | 406 |
| Jameson | 400 |
| Jia | 398 |
| Jury | 383 |
| Jobson | 381 |
| Jeon | 375 |
| Jessop | 370 |
| Jefferies | 369 |
| Jovanovic | 355 |
| Jessup | 345 |
| Jager | 345 |
| Joel | 343 |
| Junes | 334 |
| Job | 315 |
| Jun | 314 |
| Jacques | 307 |