John Farrar (born 1945) is an Australian-born musician.
John Farrar may also refer to:
John Farrar (scientist) (1779–1853), professor of mathematics and natural philosophy at Harvard John Farrar (minister) (1802–1884), British Methodist minister John C. Farrar (1896–1974), American editor, writer and publisher John Percy Farrar (1857–1929), English soldier and mountaineer John Nutting Farrar (1839–1913), American dentist John Farrar (burgess) (1632–1685), Virginia planter and burgess