Henry Menasco Wade (November 11, 1914 – March 1, 2001) was an American lawyer who served as district attorney of Dallas County from 1951 to 1987. He participated in two notable U.S. court cases of the 20th century: the prosecution of Jack Ruby for killing Lee Harvey Oswald, and the U.S. Supreme Court's decision legalizing abortion, Roe v. Wade. In addition, Wade was district attorney when Randall Dale Adams, the subject of the 1988 documentary film The Thin Blue Line, was wrongfully convicted in the murder of Robert Wood, a Dallas police officer.