Sonia Ann Johnson, is an American feminist activist and writer. She was an outspoken supporter of the Equal Rights Amendment and in the late 1970s was publicly critical of the position of The Church of Jesus Christ of Latter-day Saints, of which she was a member, against the proposed amendment. She eventually was excommunicated from the church for her activities. She went on to publish several radical feminist books, ran for president in 1984, and become a popular feminist speaker.