- Source: Rob Onus
Robert Lester Onus (born 30 November 1954) is an Australian former rugby union player.
Onus grew up near Moree in country New South Wales and completed his schooling in Sydney at The King's School, Parramatta, where he had two years with the 1st XV. He then returned home and played for Moree and a Central North Kookaburras regional side that won three successive NSW Country Championships.
A forward, Onus made his NSW representative debut in 1977 and the same year toured overseas alongside his brother Charlie with NSW Country. He won a Wallabies call up for the 1978 tour of New Zealand, making uncapped appearances against Nelson Bays, Southland, Counties Manukau, Mid-Canterbury and Wanganui.