- Rabbitohs (Rugby League)
- Racing 92 (Rugby Union)
- Racing Club (Football)
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- Radnik Bijeljina (Football)
- RAF Men (Rugby Union)
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- Rafael Espinoza (Boxing)
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- Raiders (Rugby League)
- Raiders (Cricket)
- Raiders Women (Rugby League)
- Railways (Cricket)
- Raith Rovers (Football)
- Rajasthan (Cricket)
- Rajasthan Royals (Cricket)
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- Rajkot Thunders (Cricket)
- Rajshahi (Cricket)
- Rajshahi Division (Cricket)
- Raków Częstochowa (Football)
- Ramon Alvarez (Boxing)
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- Ramsgate (Football)
- Rances Barthelemy (Boxing)
- Randers FC (Football)
- Rangers (Football)
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- Rangpur Division (Cricket)
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- Ranheim TF (Football)
- Rapid Wien (Football)
- Ratiopharm Ulm (Basketball)
- Rawalakot Hawks (Cricket)
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- Rawalpindi Region (Cricket)
- Rayalaseema Kings (Cricket)
- Raymond Ford (Boxing)
- Rayo Vallecano (Football)
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- RB Leipzig (Football)
- RC Lens (Football)
- RC Toulon (Rugby Union)
- RC Vannes (Rugby Union)
- Reading (Football)
- Reading Women (Football)
- Real Bedford Ladies (Football)
- Real Betis (Football)
- Real Madrid (Football)
- Real Madrid Baloncesto (Basketball)
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- Reece Bellotti (Boxing)
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- Rest of India (Cricket)
- Rey Vargas (Boxing)
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- RFC Seraing (Football)
- Rhiannon Dixon (Boxing)
- Rhinos (Cricket)
- Rhinos Women (Cricket)
- Rhode Island (American Football)
- Rhode Island FC (Football)
- Ricardo Snijders (Boxing)
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- Richard Commey (Boxing)
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- Richmond (Australian Rules Football)
- Richmond (American Football)
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- Ricky Burns (Boxing)
- Ricky Hatton (Boxing)
- Riga FC (Football)
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- River Plate (Football)
- Rizvi College Women (Cricket)
- RKC Waalwijk (Football)
- Roamer Alexis Angulo (Boxing)
- Robbie Davies Jr (Boxing)
- Robeisy Ramirez (Boxing)
- Rober Barrera (Boxing)
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- Rockdale Ilinden FC (Football)
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- Roger Gutiérrez (Boxing)
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- RoPs (Football)
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- Rugby ATL (Rugby Union)
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- Rwanda Women Under-19s (Cricket)
- RWD Molenbeek (Football)
- Ryad Merhy (Boxing)
- Ryan Amos (Boxing)
- Ryan Bourland (Boxing)
- Ryan Garcia (Boxing)
- Ryan Garner (Boxing)
- Ryan Walsh (Boxing)
- Rylan Charlton (Boxing)
- Ryota Murata (Boxing)
- RZ Pellets WAC (Football)