Bertha Wernham Wilson CC FRSC (September 18, 1923 – April 28, 2007) was a Canadian jurist and the first female puisne justice of the Supreme Court of Canada.

[3] Three years later, in 1952, her husband became a naval chaplain during the Korean War, and she worked as a dental receptionist in Ottawa.

[5] Wilson moved to Toronto and joined Osler, Hoskin & Harcourt in 1958, a year before she was called to the bar of Ontario, where she later became the firm's first female associate.

[1] Wilson's noteworthy Supreme Court rulings include R v Morgentaler in 1988 (opinion striking down abortion law), R v Lavallée in 1990 (battered-wife syndrome as self-defence), Operation Dismantle v R in 1985 (judicial review), the minority decision in R v Stevens (1988) which was adopted later in R v Hess; R v Nguyen in 1990 (mens rea and statutory rape), Kosmopoulos v Constitution Insurance Co of Canada (piercing the "corporate veil"), the dissenting opinion in McKinney v University of Guelph in 1990 (mandatory retirement), Andrews v Law Society of British Columbia in 1989 (equality rights test), and Sobeys Stores Ltd v Yeomans in 1989 (interpretative authority of tribunals) which are among the foundational cases interpreting the Canadian Charter of Rights and Freedoms that was enacted in 1982, the year that she was appointed to the Supreme Court.

"[7] Wilson developed Alzheimer's disease later in life and died in an Ottawa, Ontario, retirement home on April 28, 2007, at the age of 83.