John Farrar
John Farrar is the name of the following people:
- John Farrar (scientist) (1779-1853), American physicist and mathematician
- John Farrar (musician) (* 1945), Australian musician, composer and producer
- John C. Farrar ( John Chipman Farrar ; 1896–1974), American publisher
- John Christopher Marland Farrar (* 1944), British industrial manager and author
