John Adams Sr. (February 2, 1876 – April 21, 1962) was an American minister, lawyer, and politician and a member of the unicameral Nebraska Legislature. He was born in Atlanta, Georgia, was a lawyer and minister in South Carolina, Washington state, and Colorado before settling in Omaha, Nebraska. While in South Carolina he took a civil rights case to the U.S. Supreme Court where he lost. He was the only black member of the Nebraska unicameral for much of his tenure from 1949–1962. He was an ordained minister and at the time of his death was presiding elder of the African Methodist Episcopal Church (AME). As a legislator, he was an outspoken champion of civil rights and fought for fair employment practices and pensions for retired teachers.