John Raymond "JR" Ranch (born 16 November 1940) is an Australian former rower, twice a national champion and a silver medal winner at the 1968 Summer Olympics.

[1] From the Sydney University Boat Club Ranch was chosen to represent Australia in a Trans-Tasman regatta against New Zealand in 1965 rowing in the four seat of the men's eight.

[2] In 1966 Ranch was seated at bow in the Australian men's coxed four which competed at the second ever World Rowing Championships in Bled, Yugoslavia and placed eighth.

[3] In 1968 he was seated at three in the Australian men's eight which won the silver medal at the Mexico Olympics.

In 1985 again as a rower, Ranch represented Australia at the World Masters Games in Toronto, Canada.