The 1970 Allan Cup was the Canadian senior ice hockey championship for the 1969–70 senior "A" season. The event was hosted by the Spokane Jets in Spokane, Washington. The 1970 playoff marked the 62nd time that the Allan Cup has been awarded.
The 1970 Allan Cup marked the first time the Allan Cup final was hosted in the United States, as well as the first time an American team has won the Allan Cup.
Spokane Jets 5 - Orillia Terriers 2
Spokane Jets 5 - Orillia Terriers 0
Orillia Terriers 5 - Spokane Jets 2
Orillia Terriers 6 - Spokane Jets 2
Spokane Jets 2 - Orillia Terriers 1
Spokane Jets 6 - Orillia Terriers 3
Central Semi-final
Orillia Terriers defeated Sault Ste. Marie Canadians 3-games-to-none
Orillia Terriers 6 - Sault Ste. Marie Canadians 5
Orillia Terriers 6 - Sault Ste. Marie Canadians 4
Orillia Terriers 6 - Sault Ste. Marie Canadians 3East Semi-final
Victoriaville Tigers defeated St. John's Capitals 3-games-to-1
Victoriaville Tigers 6 - St. John's Capitals 5
Victoriaville Tigers 4 - St. John's Capitals 2
St. John's Capitals 3 - Victoriaville Tigers 1
Victoriaville Tigers 7 - St. John's Capitals 3Final
Orillia Terriers defeated Victoriaville Tigers 4-games-to-2
Victoriaville Tigers 8 - Orillia Tigers 7
Victoriaville Tigers 6 - Orillia Tigers 3
Orillia Terriers 6 - Victoriaville Tigers 2
Orillia Terriers 5 - Victoriaville Tigers 3
Orillia Terriers 3 - Victoriaville Tigers 2
Orillia Terriers 5 - Victoriaville Tigers 4
Quarter-final
St. Boniface Mohawks defeated Fort William Beavers 3-games-to-1
St. Boniface Mohawks 5 - Fort William Beavers 2
St. Boniface Mohawks 6 - Fort William Beavers 4
Fort William Beavers 11 - St. Boniface Mohawks 6
St. Boniface Mohawks 3 - Fort William Beavers 1Pacific Semi-final
Spokane Jets defeated Calgary Stampeders 3-games-to-none
Spokane Jets 4 - Calgary Stampeders 1
Spokane Jets 4 - Calgary Stampeders 0
Spokane Jets 5 - Calgary Stampeders 2West Semi-final
St. Boniface Mohawks defeated Yorkton Terriers 3-games-to-2
Yorkton Terriers 7 - St. Boniface Mohawks 3
St. Boniface Mohawks 6 - Yorkton Terriers 3
Yorkton Terriers 4 - St. Boniface Mohawks 2
St. Boniface Mohawks 4 - Yorkton Terriers 2
St. Boniface Mohawks 4 - Yorkton Terriers 2Final
Spokane Jets defeated St. Boniface Mohawks 3-games-to-1
Spokane Jets 5 - St. Boniface Mohawks 2
Spokane Jets 4 - St. Boniface Mohawks 2
St. Boniface Mohawks 6 - Spokane Jets 5
Spokane Jets 5 - St. Boniface Mohawks 3