Ferenc "Frank" Arok (Hungarian: Árok Ferenc) (born 20 January 1932 in the Kingdom of Yugoslavia) is a retired Serbian association football player and coach of Hungarian descent.
Arok played for FK Jedinstvo in Yugoslavia during the 1950s before moving into coaching. In the early 1960s Arok coached FK Novi Sad and FK Vojvodina before being brought out to Australia. In Australia Arok coached St George Saints, whom he led to a New South Wales State league title in 1972, and to the National Soccer League title in 1983, as well as South Melbourne FC, Port Melbourne, Gippsland Falcons, and Sydney Olympic but is best known for his role as coach of the Australian national team. Arok coached Australia in 48 A internationals between 1983 and 1989. After working with Perth Glory's youth team between 2001 and 2003, Arok moved back to his homeland (Serbia) with his wife Gordana Divljak Arok to retire. He has one daughter, Marijana Novaković, and two granddaughters, Gordana Novaković and Lena Sokol.