Mamie White Colvin was an American temperance activist. In 1918, she was the Prohibition Party candidate for Lieutenant Governor of New York. She also ran as the Prohibition party candidate for U.S. representative from New York's 21st congressional district in 1921, making her the first woman to seek office at the congressional level in New York history. After failing to get elected into any political office, she went on to become president of the Women's Christian Temperance Union from 1944 until 1953.