| Tampa Bay Buccaneers | National Football League | — | April 24, 1974 | Raymond James Stadium |
| Tampa Bay Lightning | — | — | 1992 | Expo Hall, Tropicana Field, Benchmark International Arena |
| Tampa Bay Rays | Major League Baseball | — | 1998 | Tropicana Field |
| Taranto Cras Basket | Lega Basket Femminile | Taranto | 1961 | — |
| Tecnológico de Pucallpa | Peruvian Segunda División | — | 2005 | Estadio Aliardo Soria Pérez |
| Texas Rangers | Major League Baseball | — | 1972 | Choctaw Stadium |
| Thunder Basket Matelica - Fabriano | — | — | — | — |
| Toronto Arenas | — | — | 1917 | Mutual Street Arena |
| Toronto Blue Jays | Major League Baseball | Toronto | 1977 | Rogers Centre |
| Toronto FC | Major League Soccer | Toronto | 2006 | BMO Field |
| Toronto Maple Leafs | — | — | November 22, 1917 | Scotiabank Arena, Mutual Street Arena, Maple Leaf Gardens |
| Toronto Raptors | National Basketball Association | Toronto | 1995 | Rogers Centre, Scotiabank Arena |
| Toronto St. Patricks | — | — | — | Mutual Street Arena |
| Total Chalaco | Copa Perú | — | 2003 | Estadio Segundo Aranda Torres |
| Trapani Shark | Serie A | Trapani | 1964 | — |