Margaret-Ann Armour (September 6, 1939 – May 25, 2019) was a Scottish-born Canadian chemist. She is best known for her work in creating guidelines for hazardous laboratory waste disposal. She was also a voice for women in science. She founded the Women in Scholarship, Engineering, Science and Technology (WISEST) program. She was a professor at the University of Alberta. She was named a member of the Order of Canada in 2006, and a Canada 150 ambassador in 2017. She was born in Glasgow.