| 1958 International League season | |
|---|---|
| League | International League |
| Sport | Baseball |
| Duration | April 16 – September 24 |
| Number of games | 154 |
| Number of teams | 8 |
| Regular season | |
| Season MVP | Rocky Nelson, Toronto Maple Leafs |
| Governors' Cup Playoffs | |
| League champions | Montreal Royals |
| Runners-up | Toronto Maple Leafs |
The 1958 International League was a Class AAA baseball season played between April 16 and September 24. Eight teams played a 154-game schedule, with the top four teams qualifying for the post-season.
The Montreal Royals won the Governors' Cup, defeating the Toronto Maple Leafs in the final round of the playoffs.