Robert James Ellicott (born 15 April 1927) is an Australian lawyer, politician and judge.
Ellicott is one of only six politicians to have served in both the Parliament of Australia and the Federal Court of Australia, along with Nigel Bowen, Merv Everett, Tony Whitlam, John Reeves and Duncan Kerr.
From 1975 to 1977, Ellicott was the 24th Attorney-General for Australia during the Malcolm Fraser ministry.