Lloyd Clive McDermott (1 November 1939 – 6 April 2019), also known as Mullenjaiwakka, was an Australian barrister and rugby union player. He was the first Australian Aboriginal barrister and the second Aboriginal person to represent his country in rugby union, playing for the Wallabies against the New Zealand All Blacks in 1962. During South Africa's era of apartheid, McDermott made a principled decision to withdraw from the squad rather than play as an "honorary white" on a subsequent South African tour.