1942 Memorial Cup (first awarded in 1919) semi-final was the 24th junior ice hockey Oshawa Generals competed against Portage la Prairie Terriers of the Manitoba Junior Hockey League.
The 1942 Memorial Cup final was the 24th junior ice hockey championship of the Canadian Amateur Hockey Association. The George Richardson Memorial Trophy champions Oshawa Generals of the Ontario Hockey Association in Eastern Canada competed against the Abbott Cup champions Portage la Prairie Terriers of the Manitoba Junior Hockey League in Western Canada. The 1919 Memorial Cup final was the first junior ice hockey championship of the Canadian Amateur Hockey Association. 
