1947-48 Thunder Bay Senior Playoffs

League final
Best of 7


 * Fort William 9 Port Arthur 3
 * Fort William 6 Port Arthur 4
 * Fort WIlliam 5 Port Arthur 3
 * Fort William 9 Port Arthur 3

Fort William Legion beat Port Arthur Bearcats 4 wins to none.

Independent team
Fort Frances Canadians (played in Northern Amateur League).

Regional Final
Best of 7


 * Fort Frances 8 Fort William 3
 * Fort Frances 5 Fort William 4
 * Fort Frances 3 Fort William 1
 * Fort William 3 Fort Frances 3
 * Fort WIlliam 6 Fort Frances 1
 * Fort William 5 Fort Frances 4
 * Fort Frances 4 Fort William 2

Fort Frances Canadians beat Fort William Legion 4 wins to 2, 1 tie.

Fort Frances Canadians advanced to the 1947-48 Western Canada Allan Cup Playoffs.