The Women's Trade Union League (WTUL) (1903–1950) was a U.S. organization of both working class and more well-off women to support the efforts of women to organize labor unions and to eliminate sweatshop conditions. The WTUL played an important role in supporting the massive strikes in the first two decades of the twentieth century that established the International Ladies' Garment Workers' Union and Amalgamated Clothing Workers of America and in campaigning for women's suffrage among men and women workers.