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 was born in Glasgow, Scotland on 6 September 1939,[1][2] Her father died during World War II, and she was raised by her mother (a teacher).

[2] Armour went on to pursue a Bachelor of Science at the University of Edinburgh, then spent five years working as research chemist in the paper-making industry at Penicuik, where her research into finding different paper coatings resulted in Armour being awarded a Master of Science from the University of Edinburgh.

[3][5][7] Armour served as the assistant chair of the Department of Chemistry (1989–2005) before assuming the role of the University of Alberta's Associate Dean of Science for Diversity in 2005.

[3] Armour has previously served as a chair for the Canadian Coalition of Women in Science, Engineering, Trades and Technology (CCWESTT).