2004
From SABR Encyclopedia
Leagues active in 2004
- 2004 American League
- 2004 Appalachian League
- 2004 Arizona Fall League
- 2004 Arizona League
- 2004 Atlantic League
- 2004 California League
- 2004 Carolina League
- 2004 Central League
- 2004 China Baseball League
- 2004 Chinese Professional Baseball League
- 2004 Cuban League
- 2004 Dominican Summer League
- 2004 Dominican Winter League
- 2004 Dutch Major League
- 2004 Eastern League
- 2004 Federation Francaise De Baseball
- 2004 Florida Instructional League
- 2004 Florida State League
- 2004 Frontier League
- 2004 Gulf Coast League
- 2004 International League
- 2004 Italian Baseball League
- 2004 Japan Central League
- 2004 Japan Eastern League
- 2004 Japan Pacific League
- 2004 Japan Western League
- 2004 Korean Baseball Organization
- 2004 Mexican League
- 2004 Mexican Pacific Winter League
- 2004 Midwest League
- 2004 National League
- 2004 New York-Pennsylvania League
- 2004 Northeast League
- 2004 Northern League
- 2004 Northwest League
- 2004 Pacific Coast League
- 2004 Pioneer League
- 2004 Probeis Winter League
- 2004 Puerto Rican Winter League
- 2004 South Atlantic League
- 2004 Southern League
- 2004 Southwestern League
- 2004 Texas League
- 2004 Venezuelan Summer League
- 2004 Venezuelan Winter League