| Sheboygan Red Skins | National Basketball Association | Sheboygan | 1938 | Playdium, Sheboygan Municipal Auditorium and Armory |
| Silver Basket Porto Torres | — | Porto Torres | — | — |
| Sisv Viterbo | — | Viterbo | — | — |
| Societa Veroli Basket | — | Frosinone | 1968 | — |
| Società Ginnastica Triestina | — | Trieste | 1930 | — |
| Spider Fabriano | — | — | — | — |
| Sport Boys Association | Torneo Descentralizado | — | 1927 | Estádio Miguel Grau (Callao) |
| Sport Chorrillos | Copa Peru | — | — | Estádio Campeones del 36 |
| Sport Coopsol | Segunda División (Campeonato Peruano de Futebol) | — | 2000 | Estadio Municipal de Chorrillos |
| Sport Dos de Mayo | Copa Peru | — | — | Union Tarma Stadium |
| Sport Huamanga | Copa Peru | — | 2002 | Estádio Ciudad de Cumaná |
| Sport Inca | — | — | 18 de maio de 1908 | Estadio Nacional del Perú (1897) |
| Sport José Gálvez | — | — | 1902 | Estadio Nacional del Perú (1897) |
| Sport Juan Bielovucic | — | — | — | Estadio Nacional del Perú (1897) |
| Sport Pilsen Callao | Copa Peru | — | 1924 | — |
| Sport Sáenz Peña | — | — | 1906 | Estadio Telmo Carbajo |
| Sport Victoria | Copa Peru | — | 1916 | Estadio José Picasso Peratta |
| Sport Águila | Segunda División (Campeonato Peruano de Futebol) | — | 25 de dezembro de 1947 | — |
| Sporting Bellavista | — | — | 1912 | Estadio Nacional del Perú (1897) |
| Sporting Club Gira | — | Bolonha, Ozzano dell'Emilia | 1945 | — |
| Sporting Pizarro | Copa Peru | — | — | Estadio Mariscal Cáceres |
| Sporting Tabaco (1926–1955) | Campeonato Peruano de Futebol | — | 16 de novembro de 1926 | Estádio Nacional do Peru |
| Sportivo Melgar | — | — | 14 de julho de 1925 | Estadio Nacional del Perú (1897) |
| Sportivo Tarapacá Ferrocarril | — | — | 15 de outubro de 1911 | Estádio Nacional do Peru |
| SS Lazio Basket | — | Roma | 1932 | — |
| St. Louis Blues | — | — | 1967 | Enterprise Center |
| St. Louis Cardinals | Major League Baseball | — | 1882 | Busch Stadium |
| St. Louis City Soccer Club | Major League Soccer | St. Louis | 20 de agosto de 2019 | Energizer Park |
| St. Louis Hawks | National Basketball Association | — | — | — |
| Starlight Valmadrera | — | — | — | — |
| Stella Azzurra Roma | — | Roma | 1938 | — |
| Sutor Basket Montegranaro | — | Montegranaro | 1947 | Banca Marche Palace |
| Tampa Bay Buccaneers | National Football League | — | 24 de abril de 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 | Serie A1 | Tarento | 1961 | — |
| Tecnológico de Pucallpa | Segunda División (Campeonato Peruano de Futebol) | — | 2005 | Estadio Aliardo Soria Pérez |
| Tennessee Titans | National Football League | Nashville | 1960 | Nissan Stadium |
| 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 | — | — | 22 de novembro de 1917 | Scotiabank Arena, Mutual Street Arena, Maple Leaf Gardens |
| Toronto Raptors | National Basketball Association | Toronto | 1995 | Rogers Centre, Scotiabank Arena |
| Toronto St. Pats | — | — | — | Mutual Street Arena |
| Total Chalaco Fútbol Club | Copa Peru | — | 2003 | Estadio Segundo Aranda Torres |
| Trapani Shark | Liga Italiana de Basquetebol | Trápani | 1964 | — |