Women's union may refer to:
Bulgarian Women's Union Crittenton Women's Union, Boston Murba Women's Union, Indonesia Lithuanian Women's Union Socialist Women's Union of Korea Sudanese Women's Union Ukrainian Women's Union Union of Women of Wallonia, Belgian women's association, 1912–1955 Vietnam Women's Union Women's Union (Liechtenstein), women's section of the Patriotic Union Women's Union to Defend Paris and Care for the Wounded, 1871 organization during the Paris Commune Yemeni Women's Union Union of Sammarinese Women