Jonathan George "Jonty" Farmer (born 23 April 1945) is a retired sailor who represented New Zealand at the 1968 and 1976 Summer Olympics.
Farmer was born in 1945 in Te Puke in the Bay of Plenty.[1] He later lived in Rotorua[2] and received his education at Rotorua Boys' High School.[3] He competed at the 1968 Summer Olympics in Mexico City in the Finn class and came 11th.[4] He travelled to the 1972 Summer Olympics in Germany as a reserve but did not compete. He then competed at the 1976 Summer Olympics in Montreal, Canada, in the Finn class and came 15th.[5]
His daughter, Holly Farmer, is a boat builder in Tauranga.[2]