These were the 1958-59 Ottawa District Intermediate Playoffs:
Upper Ottawa Valley League[]
Teams: Shawville, Deep River, Pembroke, Fourth RCHA, First Canadian Guards.
- Semifinals
- Shawville - First Canadian Guards 2:0 on series (9:8, 8:2)
- Deep River Rockets - Fourth RCHA 2:1 on series (14:4, 6:7, W:L)
- Final
- Shawville - Deep River Rockets (7:2, 5:6 OT, ?)
Border League[]
Won by Hawkesbury. Other teams: Maxville, Williamstown, Alexandria, Lancaster.
Ottawa District League[]
Teams: Aylmer Saints, Quyon, Chaudiere Rockets, RCAF
- Semifinal
- Aylmer Saints - Quyon 2:0 on series (8:0, 3:0)
- Final
- Ottawa Chaudiere Rockets - Aylmer Saints 3:1 on series
Semi Final[]
- Cornwall Combines - Ottawa Chaudiere Rockets 2:1 on series (14:2, L:W, 8:6)
Final[]
- Cornwall Combines - Hawkesbury
Sources[]
- Ottawa Citizen