These were the 1956-57 Northern Ontario Intermediate B Playoffs:
Sault-Algoma League[]
- 12/13: Blind River Athletics - Soo Esquires 4:4
- 1/8: Soo Esquires - Blind River Athletics 5:4
- 1/13: Blind River Athletics - Soo Esquires 6:4
- 1/15: Blind River Athletics - Perini Braves 13:4
- 1/20: Blind River Athletics - Soo Esquires 7:4
- 1/24: Blind River Athletics - Perini Braves 16:11
- 1/31: Blind River Athletics - Perini Braves 8:3
- 2/27: Blind River Athletics - Perini Braves 11:7
- 3/3: Blind River Athletics - Soo Esquires 5:5
- Final
- Blind River Athletics beat Sault Ste Marie Esquires 3 wins to 2 (7:5, 3:5 OT, 8:4, 5:9, 7:5)
Note: This series had no effect on the NOHA playdowns.
NOHA Intermediate B League[]
- 12/23: Temiskaming Royals - Sudbury Frontenacs 6:4
- 1/6: Temiskaming Royals - Sudbury Frontenacs 9:4
- 1/13: Temiskaming Royals - Espanola Kayvees 7:4
- 1/27: Temiskaming Royals - Sudbury Frontenacs 4:1
- 2/3: Espanola Kayvees - Temiskaming Royals 5:2
First round[]
- Temiskaming Royals beat Sudbury Frontenacs 2:0 on series (9:2, 6:3)
Quarterfinals[]
- Temiskaming Royals beat Espanola Kayvees 3:1 on series (9:4, L:W, 5:4, 5:2)
Semifinals[]
Best of 3
- Temiskaming Royals beat Blind River Athletics (16:8, defaulted)
Final[]
Best of 3
- Temiskaming Royals beat Hearst Lumber Kings 2 wins to none (13:3, 10:1)
Unofficial Intermediate Championship[]
(Temiskaming vs 1956-57 NWQHL season champion Val'd Or)
- Temiskaming Royals - Val D'Or Golden Stars 2:1, 1 tie on series (6:9, 11:3, 7:7, 9:4)