| Name | # Entries |
|---|---|
| Thuy | 386 |
| Thorburn | 383 |
| Thapa | 382 |
| Tozer | 379 |
| Trembath | 378 |
| Turvey | 373 |
| Tabone | 373 |
| Teague | 372 |
| Tindall | 369 |
| Tian | 369 |
| Teasdale | 368 |
| Trigg | 366 |
| Tighe | 366 |
| Thom | 362 |
| Thorley | 360 |
| Tse | 358 |
| Tennant | 355 |
| Traynor | 354 |
| Timmins | 351 |
| Twomey | 350 |
| Trott | 347 |
| Tay | 345 |
| Teo | 345 |
| Trewin | 340 |
| Towns | 339 |
| Trevor | 334 |
| Travis | 331 |
| Tynan | 329 |
| Toole | 325 |
| Tarranto | 318 |
| Tom | 317 |
| Thurlow | 317 |
| Turley | 309 |
| Thurston | 308 |
| Tonks | 307 |
| Towers | 303 |
| Tilbrook | 301 |
| Thwaites | 298 |
| Toma | 298 |
| Tracy | 296 |
| Tye | 295 |
| Trang | 295 |
| Teng | 292 |
| Tippett | 288 |
| Tung | 284 |
| Tester | 283 |
| Tolloch | 283 |
| Tapp | 280 |
| Thomsen | 279 |
| Trainor | 279 |
| Tesoriero | 277 |
| Timothy | 274 |
| Tickle | 269 |
| Tolley | 266 |
| Tee | 265 |
| Treacy | 263 |
| Trimboli | 262 |
| Tomlin | 259 |
| Tolhurst | 259 |
| Topp | 259 |
| Treasure | 258 |
| Tiller | 254 |
| Theodore | 252 |
| Talevski | 252 |
| Tim | 250 |
| Teoh | 248 |
| Ti | 248 |
| Teale | 246 |
| Tanti | 244 |
| Tasson | 242 |
| Tseng | 240 |
| Trevaskis | 239 |
| Trimble | 239 |
| Teggart | 239 |
| Toovey | 234 |