Martha Ruth Cohen, CM, AOE, LLD (née Block; 1920 – February 26, 2015) was a Canadian community activist and philanthropist. She was a member of the Order of Canada.

Cohen was of Jewish descent.^[1]

• Lumley, Elizabeth (2003). Canadian Who's Who, 2003. ISBN 9780802088659.
• "The Best of Alberta, Calgary Herald, 2008". Archived from the original on 2015-02-27. Retrieved 2015-03-01.
• "Global Woman of Vision, Global News, 2009".
• "Calgary Philanthropist Dies, CBC News, 2015".
• "Calgary Philanthropic Legend Martha Cohen Dies,Calgary Herald, 2015".

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