Margaret-Ann Armour CM (6 September 1939 – 25 May 2019) was a Scottish-born Canadian chemist based at the University of Alberta. She is best known for her expertise in developing guidelines for hazardous lab waste disposal, and for being a vocal advocate for women in science. Armour founded the Women in Scholarship, Engineering, Science and Technology (WISEST) program, and served as the first and only Associate Dean of Science for Diversity at the University of Alberta. Among her many honors, she was named a member of the Order of Canada (2006), a 3M Teaching Fellow (1996) and a Canada 150 ambassador (2017).