The Minnesota Woman Suffrage Association (MWSA) was an organization devoted to women's suffrage in Minnesota. From 1881 to 1920, the organization struggled to secure women's right to vote. Its members organized marches, wrote petitions and letters, gathered signatures, gave speeches, and published pamphlets and broadsheets to force the Minnesota Legislature to recognize their right to vote. Due to their efforts, the legislature approved the Nineteenth Amendment in 1919.