American Association of Professional Baseball
| Current season, competition or edition: 2025 American Association season | |
| Classification | Independent baseball |
|---|---|
| Sport | Baseball |
| Founded | 2005 |
| First season | 2006 |
| Commissioner | Joshua Schaub |
| No. of teams | 12 |
| Countries | United States Canada |
| Confederation | WBSC Americas |
| Most recent champion | Kane County Cougars (2025) |
| Most titles | Winnipeg Goldeyes and Kansas City Monarchs (3) |
| Related competitions | Baseball Champions League Americas |
| Official website | aabaseball |
The American Association of Professional Baseball is an independent professional baseball league founded in 2005. It operates in the central United States and Canada, mostly in cities not served by organized baseball (Major League Baseball teams or their minor league affiliates). The league's level of play is comparable to High-A in organized baseball. League offices are located in Moorhead, Minnesota, and Joshua Schaub is the current league commissioner. Though a separate legal entity, the league shared a commissioner and director of umpires with the Can-Am League during the latter league's existence. The American Association of Professional Baseball has 501(c)(6) tax-exempt status with the Internal Revenue Service. In 2020, as part of MLB's reorganization of the minor leagues, the American Association, Atlantic League, and Frontier League became official MLB Partner Leagues, joining MLB in promoting the sport across North America, particularly in areas not served by organized baseball.