| T | (Texel) (Netherlands) | Tomten ( Sweden) |
| T-38 (Sweden) | Thalatta (GB) | (Tongass) (USA) |
| (T-276) (Norway) | Thalia (Austria) | Tonjin (Netherlands) |
| (T. B. Heathorne) (GB) | Thalis O. Milissios (Greece) | (Torbay Lass) (GB) |
| T.G.B. (GB) | Thalwil (Switzerland) | Toroa (New Zealand) |
| (T. G. Masaryk) (Czech Republic) | Thania (USA) | (Tornator II) (Finland) |
| TA-1 (Turkey) | (The Lily) (GB) | Torpedo Cutter No. 3 (Bulgaria) |
| (Tabau) (Slovak Republic) | (The Maid of Sker) (Australia) | Torsk (USA) |
| Tabor Boy (USA) | The Sullivans (USA) | (Tourist) (USA) |
| Tahchin (Thailand) | The Three Brothers (GB) | Tovaritsch (GB) |
| (Tahiti) (Portugal) | Thea-Angela (Germany) | TP (Australia) |
| Tajfun (Bermua) | Theodor Heuss (Germany) | Traditionsschiff (Germany) |
| Taimi III (Finland) | (Theodora) (GB) | Trafik (Sweden) |
| Taioma (New Zealand) | Theresa E. Connor (Canada) | (Trave) (Germany) |
| (Talata) (Denmark) | Thinh Vuong (Australia) | Trieste (USA) |
| Tamaroa (USA) | Thistle (GB) | Trieste II (USA) |
| Taney (USA) | (Thomas) (Denmark) | Trillium (Canada) |
| (Tania) (Germany) | Thomas F. Baynard (Canada) | Trincomalee (GB) |
| (Tankmaster No. 1) (USA) | Thomee (Sweden) | (Trinchen Behrens) (Germany) |
| Tapio (Finland) | Thor (Netherlands) (Sweden) | Trivia (USA) |
| (Tapline) (Australia) | (Thorbryn) (Australia) | Trix (Netherlands) |
| Tarahne (Canada) | Thorolf (Norway) | Trixen (Australia) |
| Tarjanne (Finland) | (Thyme) (GB) | Trui (Netherlands) |
| (Tarkarri) (Australia) | Ti Tu (Australia) | (Truus Delta 8) (Netherlands) |
| Tarmo (Finland) | Ticonderoga (USA) (USA) | (Tryggo) (Sweden) |
| Tarnan (Sweden) | (Tid 35) (GB) | (Tsar Mikhail Feodorovitch) (Estonia) |
| Tattershall Castle (GB) | (Tid 159) (GB) | (Tsarev) (Russia) |
| Taucher Flint III (Germany) | Tid 164 (GB) | Tube Boat No. 39 (GB) |
| (Taucher Sievers IV) (Netherlands) | Tid 172 (GB) | Tu Do (Australia) |
| (Taunola 2) (Finland) | Tiger (Germany) | Tudor Vladimirerscu (Romania) |
| (TCA-1) (Netherlands) | Tikal (Guatemala) | Tuhoe (New Zealand) |
| Te Anau (New Zealand) | Time Machine (Egypt) | (Tungenes) (Norway) |
| Te Aroha (New Zealand) | Tippa (Finland) | Turbinia (GB) |
| Te Toki A Tapiri (New Zealand) | Titipan (Australia) | (Turku) (Finland) |
| Tecla (Netherlands) | Tjeld (Norway) | Turner Joy (USA) |
| Tecumseh (Canada) | TO-215 (Russia) | (Turnu Severin) (France) |
| Telco (USA) | (Toddy Wax) (USA) | Tuscarora (USA) |
| Teniers (Germany) | Toimi (Finland) | Twenthe (Netherlands) |
| Terima Kasih (Australia) | Toimi II (Finland) | Twilite (USA) |
| (Terrier) (GB) | (Toinen) (Finland) | (TV 238) (Sweden) |
| (Tetschen) (Germany) | Tollesbury (GB) | TV 253 (Sweden) |
| Texas (USA) | Tommi (Finland) |
