Philip Hart, American lawyer and politician, 49th Lieutenant Governor of Michigan (d. 1976)

Philip Aloysius Hart (December 10, 1912 – December 26, 1976) was an American lawyer and politician. A Democrat, he served as a United States Senator from Michigan from 1959 until his death from cancer in Washington, D.C. in 1976. He was known as the "Conscience of the Senate".