Baseball Mannschaften, die mit U beginnen
- UVV Pickies
- USC Upstate Spartans
- Utah Tech Trailblazers
- UMBC Retrievers
- UC Davis Aggies
- UT Arlington Mavericks
- UNC Wilmington Seahawks
- Untouchables Paderborn
- United States
- Uni-President 7-Eleven Lions
- UNLV Rebels
- Union Saint Gilloise
- Ucraina
- UD Las Palmas
- Universitatea Craiova
- Uruguay U23
- Usc Upstate
- Utah Valley Wolverine
- UTSA
- University Louisiana Monroe
- UAB Blazers
- Uni 7 Eleven Lions
- University Of St. Thomas
- Uni President Lions
- U Craiova 1948 SA
- UT Martin Skyhawks
- UD Cornella U19
- UD La Cluz Villanovense U19
- UD Logrones U19
- UD San Sebastián De Los Reyes U19
- Union Viera U19
- Unionistas De Salamanca CF
- Utebo CF
- UD Logroñés