1973-74 Eastern Canada Allan Cup Playoffs

These determined the Eastern Canadian representative in the 1974 Allan Cup final.

Champions

 * Northern Ontario: Thunder Bay Twins
 * Ontario: Barrie Flyers
 * Newfoundland and Labrador: St. John's Capitals

Semi Final
Best of 5


 * Thunder Bay 4 St. John's 3
 * Thunder Bay 9 St. John's 1
 * Thunder Bay 9 St. John's 1

Thunder Bay Twins beat St. John's Capitals 3 wins to none.

Final
Best of 5


 * Barrie 2 Thunder Bay 1
 * Barrie 7 Thunder Bay 4
 * Barrie 2 Thunder Bay 1

Barrie Flyers beat Thunder Bay Twins 3 wins to none.

Barrie Flyers advanced to the 1974 Allan Cup final.