Kenneth Victor McMullen (16 April 1941 — 6 February 1986) was an Australian rugby union international who represented Australia in four Test matches. He also played rugby league for Eastern Suburbs.

A native of Wagga Wagga, McMullen was educated at Wagga Wagga High School and played both codes growing up.^[1]

McMullen, a rugby union scrum-half, toured New Zealand with New South Wales Country in 1960. It was his performance against the touring All Blacks two years later, in New South Wales' one-point win at the Sydney Sports Ground, that earned him Wallabies selection as a reserve for the 2nd Test. After being picked for that year's reciprocal tour of New Zealand, McMullen displaced Ken Catchpole to debut at scrum-half in the 1st Test in Wellington.^[2]

From 1964 to 1967, McMullen played first-grade rugby league for Eastern Suburbs, mainly as a halfback.^[3]

McMullen died of a brain tumour in 1986 at the age of 44.^[4]

• List of Australia national rugby union players

• Ken McMullen at ESPNscrum