Lois Elizabeth Mitchell CM AOE (née Boulding; June 22, 1939) is a Canadian businesswoman and philanthropist who was the 18th lieutenant governor of Alberta from 2015 to 2020.

Considered one of the most prominent people in Calgary,[5][6] she is also a member of the boards of directors of UBS Bank Canada, Mitacs and Canada World Youth, the governor of the Canadian Women's Hockey Association, a co-founder of the Global Business Forum, and one of twelve founders of Crime Stoppers Calgary.

[8] Mitchell also is the chair of the Latin American Research Centre at the University of Calgary and in 1997 was named an honorary consul of Colombia to Alberta by the Colombian ambassador to Canada.

[10] The Doug and Lois Mitchell Outstanding Calgary Artist Award was established in 2012 from contributions from her and her husband.

She was appointed to the Order of Canada in 2012 when she also received the Queen Elizabeth II Diamond Jubilee Medal.