1978-79 Eastern Canada Allan Cup Playoffs

These playoffs determined the Eastern Canadian representative in the 1979 Allan Cup final.

Champions

 * Ontario: Petrolia Squires
 * Newfoundland and Labrador: St. John's Shamrocks

Final
Best of 5


 * Petrolia 5 St. John's 3
 * St. John's 6 Petrolia 4
 * Petrolia 10 St. John's 4
 * Petrolia 3 St. John's 1

Petrolia Squires beat St. John's Shamrocks 3 wins to 1.

Petrolia Squires advanced to the 1979 Allan Cup Final.