Roy Rene (born Henry van der Sluys, 15 February 1891 – 22 November 1954) was an Australian comedian and vaudevillian. As the bawdy character Mo McCackie, Rene was one of the most well-known and successful Australian comedians of the 20th century. A 1927 recording of Rene and Nat Phillips performing as Stiffy and Mo, called The Sailors, was added to the National Film and Sound Archive of Australia's Sounds of Australia registry in 2011.