1965-66 Maritimes Junior Playoffs

League Champions

 * Cape Breton Junior League: Glace Bay Miners
 * Twin Cities League: Dartmouth Hoyt's Movers

Independent team

 * Halifax Canadiens

Provincial Semi Final
Best of 3


 * Halifax 6 Dartmouth 3
 * Halifax 5 Dartmouth 1

Halifax Canadiens beat Dartmouth Hoyt's Movers 2 wins to none.

Provincial Final
Best of 7


 * Halifax 7 Glace Bay 4
 * Halifax 10 Glace Bay 2
 * Halifax 7 Glace Bay 4
 * Halifax 6 Glace Bay 3

Halifax Canadiens beat Glace Bay Miners 4 wins to none.

New Brunswick
Won by Fredericton Red Wings

Prince Edward Island

 * Final

Best of 5
 * Charlottetown Rogers Rangers beat Summerside 3 wins to 1 (3-4, 10-4, 6-0, 7-6)

Semi Final
Best of 7

Fredericton Red Wings beat Charlottetown Rogers Rangers 4 wins to 1 (11-7, 13-1, 2-4, 10-2, 7-5).

Final
Best of 5


 * Halifax 8 Fredericton 2
 * Halifax 7 Fredericton 2
 * Halifax 6 Fredericton 3

Halifax Canadiens beat Fredericton Red Wings 3 wins to none.

Halifax Canadiens advanced to the 1965-66 Eastern Canada Memorial Cup Playoffs.