Betty Jane Long (born May 8, 1928) is an American politician and attorney who served in the Mississippi House of Representatives from 1956 to 1984. A member of the Democratic Party, she was one of few women legislators in Mississippi during her time in the House. She chaired several committees and subcommittees, including a subcommittee on the Equal Rights Amendment, which she opposed. After her retirement from the House, Long was appointed to a committee that drafted a proposal for a new Constitution of Mississippi.