James Allison Glen, PC (18 December 1877 – 28 June 1950) was a Canadian parliamentarian and Speaker of the House of Commons of Canada from 1940 to 1945.

Born in Renton, Scotland, Glen graduated in law from the University of Glasgow before immigrating to Canada in 1911 where he settled in Winnipeg.

Glen was chosen as Speaker of the House following the 1940 election, and had to deal with issues of wartime security such as censoring Hansard in order to remove sensitive military information.

Due to the international situation and wartime mobilization, there was a greater degree of interparty cooperation during the war which assisted Glen in his role as Speaker.

A few months later Glen resigned from the House of Commons in order to provide a seat for Stuart Garson, the Premier of Manitoba who had been enticed to join the federal Cabinet as Minister of Justice.