| Padres de San Diego | Grandes Ligas de Béisbol | San Diego | 1969 | Petco Park |
| Pallacanestro Aurora Desio | — | Desio | 1994 | — |
| Pallacanestro Biella | — | Biella | 1994 | BiellaForum |
| Pallacanestro Broni 93 | — | — | — | — |
| Pallacanestro Cantù | Lega Basket Serie A | Cermenate | 1936 | Palasport Pianella |
| Pallacanestro Don Bosco Livorno | — | — | — | — |
| Pallacanestro Femminile Costone | — | — | — | — |
| Pallacanestro Gallaratese | — | — | — | — |
| Pallacanestro Interclub | — | — | — | — |
| Pallacanestro Lago Maggiore | — | — | — | — |
| Pallacanestro Lucca | — | Lucca | — | — |
| Pallacanestro Marsala | — | — | — | — |
| Pallacanestro Messina | — | Mesina | 1976 | — |
| Pallacanestro Milano 1958 | — | Milán | 1957 | — |
| Pallacanestro Olimpia La Spezia | — | La Spezia | 1969 | — |
| Pallacanestro Piacentina | — | Piacenza | 2011 | — |
| Pallacanestro Reggiana | Lega Basket Serie A | Reggio Emilia | 1974 | PalaBigi |
| Pallacanestro Sanga Milano | — | Milán | — | — |
| Pallacanestro Sant'Antimo | — | Sant'Antimo | 1989 | — |
| Pallacanestro Senigallia | — | Senigallia | — | — |
| Pallacanestro Trieste | Lega Basket Serie A | Trieste | 1975 | Palatrieste |
| Pallacanestro Virtus Cassino | — | Frosinone | 2011 | — |
| Pallalcesto Amatori Udine | inactivo | Údine | 1944 | Palasport Primo Carnera |
| Palmares Catania | — | Catania | — | — |
| Pantere Basket Femminile | — | — | — | — |
| PB63 Lady | — | — | 1963 | — |
| Pescara Basket | Serie C (Italian men's basketball league) | Pescara | — | PalaElettra |
| PF Schio | — | Schio | 1973 | — |
| PF Umbertide | — | Umbertide | 2008 | — |
| Philadelphia Athletics | — | — | 1901 | — |
| Philadelphia Eagles | National Football League | Filadelfia | 1933 | Lincoln Financial Field |
| Philadelphia Flyers | — | — | 1967 | The Spectrum, Xfinity Mobile Arena |
| Philadelphia Phillies | Grandes Ligas de Béisbol | Filadelfia | 1883 | Citizens Bank Park |
| Philadelphia Union | Major League Soccer | Chester | 2008 | Subaru Park |
| Phoenix Suns | National Basketball Association | Phoenix | 1968 | Arizona Veterans Memorial Coliseum, Footprint Center |
| Pirata Fútbol Club | Primera División del Perú | — | 15 de noviembre de 2015 | Estadio Francisco Mendoza Pizarro |
| Pistoia Basket 2000 | Lega Basket Serie A | Pistoya | 2000 | PalaFermi |
| Pittsburgh Penguins | — | — | 1967 | Pittsburgh Civic Arena, PPG Paints Arena |
| Pittsburgh Pirates | Grandes Ligas de Béisbol | Pittsburgh | 1887 | Recreation Park, Exposition Park, Three Rivers Stadium, Forbes Field, PNC Park |
| Pittsburgh Steelers | National Football League | Pittsburgh | 1933 | Acrisure Stadium, Three Rivers Stadium |
| Polisportiva Cervia Milano Marittima | — | — | — | — |
| Polisportiva Dinamo | — | — | — | — |
| Polisportiva Dinamo Lab | — | — | — | — |
| 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 Perú | — | 29 de mayo de 1922 | Estadio Nacional del Perú |
| Potenza 84 | — | Potenza | — | — |
| Progresso Castel Maggiore | — | Castel Maggiore | — | — |