John Paul Doyle (born November 24, 1942) is an American Democratic Party politician who served as Majority Leader of the New Jersey General Assembly. Born in Newark, he was a 1964 graduate of Rutgers University and Rutgers Law School. He was elected to the State Assembly in 1973, and re-elected in 1975, 1977, 1979, 1981, 1983, 1985, 1987 and 1989, representing Ocean County. He was the Majority Leader from 1982 to 1986.
A resident of Brick Township, he was the Democratic candidate for State Senate in 1991. He lost to Republican Andrew R. Ciesla by a 62%-38% margin. Doyle served as Municipal Attorney for Brick, South Toms River and Pine Beach.