| Racing Club de Huamachuco | Copa Perú | — | 1946 | — |
| Raggisolaris Faenza | — | Faenza | — | — |
| Real Salt Lake | Major League Soccer | Salt Lake City | 2005 | America First Field |
| Real Sebastiani Rieti | Serie A2 | Rieti | 2020 | — |
| Reales de Kansas City | Grandes Ligas de Béisbol | — | 1969 | Kauffman Stadium |
| Red Bull New York | Major League Soccer | Harrison | 1995 | Giants Stadium, Sports Illustrated Stadium |
| Reyer Venezia Mestre | Lega Basket Serie A | Venecia | 1925 | Palasport Taliercio |
| Riva del Garda Basket | — | Riva del Garda | — | — |
| Robur et Fides Varese | — | Varese | — | — |
| Roseto Sharks | — | Roseto degli Abruzzi | 1946 | — |
| Rovereto Basket | — | Rovereto | — | — |
| Ruvo di Puglia Basket | — | — | — | — |