Gloria Marie Steinem (born March 25, 1934) is an American feminist, journalist, and social and political activist.

Rising to national prominence as a feminist leader in 1969, Steinem was a columnist at New York magazine in the 1960s and broke ground in 1963 with an investigative report of how the women of Playboy were treated, which was made into a 1985 movie, A Bunny's Tale. In the 1970s she became a leading political leader and one of the most important heads of the second-wave feminism, the women's rights movement of the 1960s and 1970s.

In 1971, Steinem, along with other feminist leaders (including Betty Friedan, Fannie Lou Hamer, Myrlie Evers, and U.S. Representatives Shirley Chisholm and Bella Abzug) founded the National Women's Political Caucus. An influential co-convener of the Caucus, she delivered her memorable "Address to the Women of America." The next year Steinem became the founding editor and publisher of Ms. magazine, which brought feminist issues to the forefront and became the movement's most influential publication.