This is the 1957-58 provincial playoffs of the Ontario Hockey Association's Senior B series:
Participating teams were decided in the 1957-58 OHA Senior B Season.
Semi Final[]
Best of 7
- Woodstock 5 Niagara Falls 2
- Woodstock 7 Niagara Falls 4
- Woodstock 4 Niagara Falls 3
- Woodstock 4 Niagara Falls 2
Woodstock Athletics beat Niagara Falls Motorville Rockets 4 wins to none.
Final[]
Best of 7
- Meaford 4 Woodstock 1
- Woodstock 9 Meaford 5
- Meaford 5 Woodstock 2
- Meaford 6 Woodstock 4
- Meaford 4 Woodstock 2
Meaford Knights beat Woodstock Athletics 4 wins to 1.