| Name | # Entries |
|---|---|
| Thonson | 18095 |
| Thomas Thompson | 12601 |
| Taylor | 10360 |
| Taylor' | 8221 |
| Turner | 7783 |
| Tran | 7527 |
| Taylor | 5069 |
| Tan | 3694 |
| Turner | 2727 |
| Tucker | 2447 |
| Townsend | 2413 |
| Tang | 2328 |
| Thompson | 2219 |
| Turnbull | 2000 |
| Thornton | 1919 |
| Todd | 1873 |
| Thorpe | 1472 |
| Truong | 1410 |
| Thomas | 1385 |
| Talbot | 1366 |
| Tait | 1202 |
| Tonkin | 1194 |
| Tanner | 1173 |
| Thomson | 1160 |
| Tate | 1157 |
| Tu | 1150 |
| Tomlinson | 1076 |
| Terry | 1055 |
| Thorne | 1054 |
| Tobin | 919 |
| Tierney | 893 |
| Tong | 859 |
| Toohey | 780 |
| Trinh | 759 |
| Tracey | 754 |
| Tilley | 740 |
| To | 718 |
| Tyrrell | 710 |
| Timms | 707 |
| Thai | 680 |
| Trotter | 672 |
| Thorn | 647 |
| Treloor | 642 |
| Travers | 634 |
| Tyson | 625 |
| Tully | 578 |
| Templeton | 577 |
| Ting | 572 |
| Telford | 561 |
| Te | 553 |
| Tarrant | 527 |
| Troy | 525 |
| Tam Tam | 502 |
| Tomkins | 496 |
| Tsang | 484 |
| Tuck | 480 |
| Telfer | 475 |
| Thiele | 474 |
| Ta | 463 |
| Tsai | 457 |
| Toms | 457 |
| Tai | 452 |
| Thi | 431 |
| Tao | 429 |
| Toth | 420 |
| Tranter | 420 |
| Thatcher | 419 |
| Tasker | 419 |
| Turton | 417 |
| The | 413 |
| Torres | 409 |
| Toomey | 405 |
| Thorp | 403 |
| Thu | 389 |
| Trezise | 388 |