Minna Canth, born Ulrika Wilhelmina Johnsson, 19 March 1844 – 12 May 1897) was a Finnish writer and social activist. Canth began to write while managing her family draper's shop and living as a widow raising seven children. Her work addresses issues of women's rights, particularly in the context of a prevailing culture she considered antithetical to permitting expression and realization of women's aspirations. Her play The Pastor's Family is her best known. In her time, she became a controversial figure, due to the asynchrony between her ideas and those of her time, and in part due to her strong advocacy for her point of view.

Minna Canth is the first woman to receive her own flag day in Finland, starting on 19 March 2007. It is also the day