Dorothy Louise Vennard Lamm (born May 23, 1937) is an American feminist, women's rights activist, educator, author, and speaker. She was First Lady of Colorado during her husband Richard Lamm's three terms as Governor of Colorado (1975–1987), and unsuccessfully ran for the United States Senate as the Colorado Democratic candidate in 1998. She wrote a weekly column for The Denver Post from 1979 to 1996 and later published three books. She was inducted into the Colorado Women's Hall of Fame in 1985.