| Pallacanestro Petrarca Padova | — | Pádua | 1934 | — |
| Pallacanestro Piacentina | — | Piacenza | 2011 | — |
| Pallacanestro Reggiana | Liga Italiana de Basquetebol | Reggio Emilia | 1974 | PalaBigi |
| Pallacanestro Sant'Antimo | — | Sant'Antimo | 1989 | — |
| Pallacanestro Senigallia | — | Senigallia | — | — |
| Pallacanestro Trieste 2004 | Liga Italiana de Basquetebol | Trieste | 1975 | Palatrieste |
| Pallacanestro Varese | Liga Italiana de Basquetebol | Varese | 1945 | PalaWhirlpool |
| Pallacanestro Vicenza | — | Vicenza | — | — |
| Pallacanestro Virtus Cassino | — | Frosinone | 2011 | — |
| Pallalcesto Amatori Udine | inativo | Udine | 1944 | Palasport Primo Carnera |
| Palmares Catania | — | Catânia | — | — |
| Pantere Basket Femminile | — | — | — | — |
| Partenope Napoli | — | Sant'Antimo | 1957 | — |
| PB63 Lady | — | — | 1963 | — |
| PCR Messina | — | Messina | — | — |
| Pedro Anselmo Bazalar | Copa Peru | — | 9 de julho de 2003 | Estadio Segundo Aranda Torres |
| Perugia Basket | — | — | — | — |
| Pescara Basket | Serie C (Italian men's basketball league) | Pescara | — | PalaElettra |
| PF Schio | — | Schio | 1973 | — |
| Philadelphia 76ers | National Basketball Association | Filadélfia | 1946 | Xfinity Mobile Arena, Toyota Coliseum, Philadelphia Arena, Spectrum (arena), Philadelphia Convention Hall and Civic Center, Oncenter War Memorial Arena |
| Philadelphia Athletics | — | — | 1901 | — |
| Philadelphia Eagles | National Football League | Filadélfia | 1933 | Lincoln Financial Field |
| Philadelphia Flyers | — | — | 1967 | Spectrum (arena), Xfinity Mobile Arena |
| Philadelphia Phillies | Major League Baseball | Filadélfia | 1883 | Citizens Bank Park |
| Philadelphia Union | Major League Soccer | Chester | 2008 | PPL Park |
| Phoenix Suns | National Basketball Association | Phoenix | 1968 | Arizona Veterans Memorial Coliseum, Footprint Center |
| Pirata Fútbol Club | Campeonato Peruano de Futebol | — | 15 de novembro de 2015 | Estadio Francisco Mendoza Pizarro |
| Pittsburgh Penguins | — | — | 1967 | Civic Arena, PPG Paints Arena |
| Pittsburgh Pirates | Major League Baseball | Pittsburgh | 1887 | Recreation Park, Exposition Park, Three Rivers Stadium, Forbes Field, PNC Park |
| Pittsburgh Pirates | — | — | 1925 | Duquesne Garden |
| Pittsburgh Steelers | National Football League | Pittsburgh | 1933 | Acrisure Stadium, Three Rivers Stadium |
| PMS Torino | Liga Italiana de Basquetebol | Turim | 2009 | — |
| Polisportiva Basket Agropoli | — | Agropoli | 1966 | — |
| Polisportiva Dinamo Lab | — | — | — | — |
| Polisportiva Folgore Nocera | — | — | — | — |
| Portland Timbers | Major League Soccer | Portland | 2009 | Providence Park |
| Portland Trail Blazers | National Basketball Association | Portland | 1970 | Veterans Memorial Coliseum, Moda Center |
| Porvenir Miraflores | Copa Peru | — | 29 de maio de 1922 | Estádio Nacional do Peru |
| Progresso Castel Maggiore | — | Castel Maggiore | — | — |
| Quebec Bulldogs | — | — | 1888 | Quebec Skating Rink |
| Racing de Huamachuco | Copa Peru | — | 1946 | — |
| Raggisolaris Faenza | — | Faença | — | — |
| RB Montecatini Terme | — | Montecatini Terme | 1949 | PalaTerme |
| Real Salt Lake | Major League Soccer | Salt Lake City | 2005 | Rio Tinto Stadium |
| Real Sebastiani Rieti | Serie A2 | Rieti | 2020 | — |
| Red Bull New York | Major League Soccer | Harrison | 1995 | Giants Stadium, Red Bull Arena |
| Regatas Lima | Copa Peru | — | — | — |
| Reyer Venezia Mestre Femminile | — | Veneza | 1925 | — |