Catherine Martin (born 26 January 1965) is an Australian costume designer, production designer and set designer. She won two Academy Awards for Moulin Rouge! in 2002 and another two for The Great Gatsby in 2014. Having won four Oscars, she is the most awarded Australian in Oscar history. She is credited for her several works alongside husband, filmmaker Baz Luhrmann, including Romeo + Juliet (1996), Moulin Rouge! (2001), Australia (2008), The Great Gatsby (2013), and Elvis (2022).