1970-71 Eastern Canada Allan Cup Playoffs

Champions
Northern Ontario:	Thunder Bay Twins Ontario:		Galt Hornets Newfoundland:		Grand Falls Cataracts

Semi final
Best of 5


 * Galt 8 Thunder Bay 5
 * Galt 4 Thunder Bay 3
 * Thunder Bay 7 Galt 2
 * Galt 8 Thunder Bay 1

Galt Hornets beat Thunder Bay Twins 3 games to 1.

Final
Best of 5


 * Galt 4 Grand Falls 2
 * Grand Falls 6 Galt 3
 * Galt 5 Grand Falls 2
 * Grand Falls 3 Galt 1
 * Galt 6 Grand Falls 3

Galt Hornets beat Grand Falls Cataracts 3 games to 2.

Galt Hornets advanced to the 1970-71 Allan Cup Final