John Paul Cain (January 14, 1936 – March 20, 2017[1]) was an American professional golfer who played on the Senior PGA Tour.

He helped the Red Raiders win the last two Border Conference championships in 1955 and 1956.

[2] Cain worked as a stockbroker in Houston until turning professional in 1988 at the age of 52.

He won his first tournament a year later at the Greater Grand Rapids Open, becoming only the second Monday qualifier (after Larry Mowry) to win a Senior PGA Tour event.

[3] In 1994, Cain, playing as a sponsor's exemption, earned his second Senior Tour title at the Ameritech Senior Open by one stroke over Jim Colbert and Simon Hobday, both of whom had also finished at T-2 the previous year.