| 1903 CAHL season | |
|---|---|
| League | Canadian Amateur Hockey League |
| Sport | Ice hockey |
| Duration | January 3 – February 28, 1903 |
| Number of teams | 5 |
| 1903 | |
| Champions | Ottawa Hockey Club |
| Top scorer | Russell Bowie (22 goals) |
The 1903 Canadian Amateur Hockey League (CAHL) season was the fifth season of the league. Teams played an eight game schedule. Ottawa and Montreal Victorias tied for the league championship with records of six wins and two losses. Ottawa defeated the Victorias in a two-game playoff to win the season and their first Stanley Cup championship, the first of "Silver Seven" era.