| Taal | 10 |
| Taavet | 3 |
| Tabri | 4 |
| Taevas | 28 |
| Tagamets | 2 |
| Taganõmm | 4 |
| Tagoma | 84 |
| Tali | 7 |
| Talinurm | 18 |
| Talistu | 4 |
| Talivee | 7 |
| Talli | 7 |
| Tallmeister | 3 |
| Talsen | 2 |
| Talts | 6 |
| Talumets | 3 |
| Talve | 9 |
| Tamberg | 5 |
| Tambre | 1 |
| Tambur | 1 |
| Tamm | 244 |
| Tammai | 1 |
| Tammal | 1 |
| Tammann | 2 |
| Tammaru | 8 |
| Tamme | 14 |
| Tammemäe | 7 |
| Tammeoja | 5 |
| Tammer | 4 |
| Tammik | 2 |
| Tammikust | 3 |
| Tamming | 48 |
| Tammis | 4 |
| Tammoja | 4 |
| Tammsaar | 4 |
| Tampõld | 1 |
| Tamsalu | 2 |
| Tang | 20 |
| Tanni | 76 |
| Tarak | 1 |
| Taratorin | 5 |
| Tark | 15 |
| Taro | 2 |
| Tarsi | 28 |
| Tarto | 157 |
| Tartu | 63 |
| Tarum | 1 |
| Tasa | 1 |
| Tasane | 7 |
| Taskin | 6 |
| Tassa | 4 |
| Tattar | 2 |
| Tawet | 23 |
| Tavits | 4 |
| Tebbe | 5 |
| Teder | 102 |
| Tedre | 97 |
| Teemusk | 1 |
| Teesalu | 3 |
| Tegova | 1 |
| Tehvan | 74 |
| Teigamägi | 2 |
| Tein | 3 |
| Teiste | 3 |
| Teiter | 2 |
| Tek | 5 |
| Tellisaar | 1 |
| Tellman | 3 |
| Tenga | 2 |
| Tenno | 9 |
| Tennosaar | 2 |
| Tepaskent | 1 |
| Teppo | 4 |
| Teras | 307 |
| Terasmaa | 7 |
| Terestsenko | 3 |
| Testan | 2 |
| Tetter | 3 |
| Tetto | 4 |
| Thomson | 5 |
| Tihane | 23 |
| Tihhomirov | 6 |
| Tiho | 1 |
| Tiigel | 4 |
| Tiik | 1 |
| Tiikman | 1 |
| Tiirman | 2 |
| Tiisler | 4 |
| Tiispapp | 1 |
| Tiisvelt | 5 |
| Tiit | 109 |
| Tiiter | 3 |
| Tiitsam | 2 |
| Tiitus | 3 |
| Tiivoja | 5 |
| Tikk | 140 |
| Tikkerber | 2 |
| Tikkof | 2 |
| Tiks | 5 |
| Tilk | 4 |
| Till | 119 |
| Tilly | 2 |
| Timusk | 40 |
| Tina | 8 |
| Tina-Kuusik | 1 |
| Tinn | 6 |
| Tinnuri | 2 |
| Tinnus | 4 |
| Tins | 2 |
| Tint | 17 |
| Tints | 4 |
| Tintson | 1 |
| Tivas | 6 |
| Tobre | 3 |
| Toit | 6 |
| Tokso | 32 |
| Tolga | 4 |
| Tollimägi | 5 |
| Tollmann | 10 |
| Tolmatsi | 30 |
| Tolpats | 2 |
| Tomaskin | 3 |
| Tomasson | 36 |
| Tomband | 2 |
| Tombu | 3 |
| Tomera | 1 |
| Tomik | 16 |
| Tomp | 6 |
| Tomson | 36 |
| Toode | 8 |
| Toom | 4 |
| Tooma | 1 |
| Toomasson | 3 |
| Toome | 13 |
| Toomeoja | 2 |
| Toomesoo | 1 |
| Toomik | 53 |
| Tooming | 12 |
| Toomiste | 1 |
| Toomla | 3 |
| Toompalu | 5 |
| Toona | 3 |
| Toots | 2 |
| Toovis | 2 |
| Tops | 6 |
| Torbek | 7 |
| Torkel | 12 |
| Torroske | 11 |
| Toru | 4 |
| Tosso | 202 |
| Traat | 4 |
| Tragun | 13 |
| Trahv | 7 |
| Traks | 1 |
| Tralla | 104 |
| Trass | 1 |
| Tregubov | 1 |
| Trei | 1 |
| Treial | 74 |
| Treier | 10 |
| Treifeld | 4 |
| Treimann | 6 |
| Treipert | 3 |
| Treu | 6 |
| Triik | 2 |
| Trikkant | 1 |
| Tross | 68 |
| Truu | 2 |
| Truupõld | 3 |
| Träss | 31 |
| Trässa | 34 |
| Tsernant | 4 |
| Tsesnokova | 1 |
| Tshernikov | 4 |
| Tsujaev | 2 |
| Tsvetkova | 1 |
| Tubin | 174 |
| Tugi | 3 |
| Tuha | 96 |
| Tuhasoo | 3 |
| Tuisk | 10 |
| Tulgiste | 2 |
| Tults | 3 |
| Turjakas | 2 |
| Turk | 168 |
| Turnell | 3 |
| Turzak | 6 |
| Turu | 2 |
| Tuuletare | 4 |
| Tuustik | 150 |
| Tuvike | 6 |
| Tuvikene | 2 |
| Tõkke | 1 |
| Tõldsepp | 51 |
| Tõlnikov | 5 |
| Tõnissaar | 1 |
| Tõnisson | 1 |
| Tõnissoo | 4 |
| Tõniste | 4 |
| Tõnnisson | 5 |
| Tõns | 8 |
| Tõnts | 43 |
| Tõruvere | 173 |
| Tõrva | 179 |
| Tähepõld | 1 |
| Tätte | 6 |
| Tölp | 2 |
| Tönström | 9 |
| Tühane | 4 |
| Tüür | 8 |
| Uba | 2 |
| Ude | 227 |
| Udekülla | 2 |
| Udel | 2 |
| Ude-Rajamäe | 1 |
| Udras | 4 |
| Uga | 4 |
| Uhek | 32 |
| Uhekson | 8 |
| Uibo | 29 |
| Uibu | 5 |
| Uiga | 5 |
| Ujok | 33 |
| Ujuk | 130 |
| Ulm | 5 |
| Undrits | 2 |
| Undusk | 127 |
| Unga | 4 |
| Unt | 15 |
| Urb | 3 |
| Uritalu | 1 |
| Urmet | 3 |
| Usalis | 5 |
| Usan | 2 |
| Uska | 3 |
| Utsal | 5 |
| Utsar | 3 |
| Uudeküll | 9 |
| Uudelepp | 4 |
| Uueni | 2 |
| Uuk | 97 |
| Uus | 5 |
| Uusen | 137 |
| Uuskivi | 2 |
| Uuspõld | 2 |
| Uustal | 14 |
| Uustalu | 6 |