Wilhelmina "Mina" Alexander (July 2, 1871 – November 7, 1961) was a Canadian oil painter and philanthropist from Hamilton, Ontario.
Alexander's painting consists primarily of landscapes, still-life scenes, and studies of nature both aquatic and land based.
She has exhibited at the Royal Canadian Academy, the Women's International Exhibition (Detroit), and the Art Association of Montreal between 1929 and 1935.
Prior to this, she served as president of the Women's Art Association of Canada, in her hometown of Hamilton.
Despite Alexander's brief tenure as president, she remained involved with the association for many decades.
In 1953, Alexander was involved in the decision to create a new art gallery in Hamilton.
Alexander also took to supporting young artists by allowing them to hang their work alongside hers in exhibitions held in her home.
Her painting style has been described as colourful and vibrant, especially with respect to her depictions of flowers for which she is most well-known.
An influential figure in the Southern Ontario art world in the early-to-mid 1900s, archives of her life and work can be found through the Women's Art Association of Hamilton, as well as through the Canadian Women's Artist History Initiative.