This is the 1937-38 Maritimes Senior Playoffs. They decided the regional senior hockey champion and the entry into the Allan Cup playoffs.
Southern Section (Nova Scotia)
Participating teams
League Champions
- Central Valley Senior Hockey League: Annapolis Royal Tigers
- Cape Breton Senior Hockey League: Glace Bay Miners
- Eastern Nova Scotia Senior Hockey League: Berwick Bruins
- Nova Scotia Hockey League: New Glasgow Seven Ups
- Valley Senior Hockey League Wolfville Sunocos
Independent team
Playoffs
Quarter finals
2 games total goals
- New Glasgow 5 Berwick 2
- Berwick 5 New Glasgow 4
New Glasgow Seven Ups beat Berwick Bruins 9 goals to 7.
- Wolfville 4 Annapolis Royal 4
- Wolfville 8 Annapolis Royal 4
Wolfville Sunocos beat Annapolis Royal Tigers 12 goals to 8.
Semi finals
2 games total goals
- New Glasgow 8 Wolfville 6
- Wolfville 4 New Glasgow 3
New Glasgow Seven Ups beat Wolfville Sunocos 11 goals to 10
- Glace Bay 2 Antigonish 0
- Glace Bay 2 Antigonish 1
Glace Bay Miners beat Antigonish Bulldogs 4 goals to 1.
Final
2 games total goals
- Glace Bay 3 New Glasgow 1
- New Glasgow 3 Glace Bay 2
Glace Bay Miners beat New Glasgow Seven Ups 5 goals to 4.
Northern Section (New Brunswick-Prince Edward Island)
Particpating teams
League Champions
Independent teams
Playoffs
First Round
Chatham beat Bathurst Papermakers 14 goals to 7.
Quarter finals
2 games total goals
Edmunston Eskimos beat Chatham 5 goals to 4.
- Summerside 6 Charlottetown 5
- Summerside 11 Charlottetown 5
Summerside Crystals beat Charlottetown Abegwiets 17 goals to 10
Semi finals
2 games total goals
- Moncton 6 Edmunston 2
- Moncton 6 Edmunston 4
Moncton Maroons beat Edmunston Eskimos 12 goals to 6.
- Summerside 10 Oxford 4
- Oxford 8 Summerside 6
Summerside Crystals beat Oxford Colts 16 goals to 12.
Final
2 games total goals
- Summerside 3 Moncton 2
- Moncton 17 Summerside 1
Moncton Maroons beat Summerside Crystals 19 goals to 4.
Regional Final
2 games total goals
- Moncton 6 Glace Bay 1
- Moncton 8 Glace Bay 1
Moncton Maroons beat Glace Bay Miners 14 goals to 2.
Moncton Maroons advanced to the 1937-38 Eastern Canada Allan Cup Playoffs.