| 1990 MLB season | |
|---|---|
| League | Major League Baseball |
| Sport | Baseball |
| Duration | April 9 – October 20, 1990 |
| Number of games | 162 |
| Number of teams | 26 |
| TV partner(s) | CBS, ESPN |
| Draft | |
| Top draft pick | Chipper Jones |
| Picked by | Atlanta Braves |
| Regular Season | |
| Season MVP | AL: Rickey Henderson (OAK) NL: Barry Bonds (PIT) |
| Postseason | |
| AL champions | Oakland Athletics |
| AL runners-up | Boston Red Sox |
| NL champions | Cincinnati Reds |
| NL runners-up | Pittsburgh Pirates |
| World Series | |
| Champions | Cincinnati Reds |
| Runners-up | Oakland Athletics |
| World Series MVP | José Rijo (CIN) |
The 1990 Major League Baseball season saw the Cincinnati Reds upset the heavily favored Oakland Athletics in the World Series, for their first title since 1976.