John Henry "Rip" Vowinkel (November 18, 1884 – July 13, 1966) was a Major League Baseball pitcher.
Vowinkel played for the Cincinnati Reds in 1905.
In six career games, he had a 3–3 record with a 4.17 ERA.
Vowinkel was born and died in Oswego, New York.
This biographical article relating to an American baseball pitcher born in the 1880s is a stub.