1957-58 Ottawa District Intermediate Playoffs

The 1957-58 Ottawa District Intermediate Playoffs were won by Ottawa CTC. They advanced to the Ottawa District Senior-Intermediate Final where they lost Senior Playoff champion Hull Legion two games to one.

Intermediate Final

 * Ottawa CTC - Renfrew Royals 2:1 on series (2:3, 9:6, 3:0)

Senior-Intermediate Final
Best of 3 Hull Legion beat Ottawa CTC 2 games to 1.
 * Ottawa 7 Hull 3
 * Hull 5 Ottawa 3
 * Hull 4 Ottawa 2

Hull Legion advanced to the 1957-58 Eastern Canada Allan Cup Playoffs.