John Fernside (died 27 October 1957, aged 65) was an Australian actor who worked extensively on stage and screen from the 1910s through to 1950s. He co-starred with Chips Rafferty in three Australian films of the 1940s; The Overlanders (1946), Bush Christmas (1947) and Eureka Stockade (1949).
Fernside was born in Perth, Western Australia and worked his way up through the theatre.