Susan "Suzie" Miller (born 1963 or 1964) is an Australian playwright, librettist, screenwriter, and lawyer. She has written over 40 plays, first coming to notice in 2008 for Reasonable Doubt, which premiered at the Edinburgh Festival Fringe. Her best-known play is Prima Facie, which was staged in a West End theatre in London in April 2022, starring Jodie Comer and directed by fellow Australian Justin Martin. The production won two Olivier Awards, three years after a highly successful run in Sydney in 2019. It was also broadcast live to cinemas around the UK through NT Live, and later around the world. Her new play, Inter Alia, also directed by Martin and starring Rosamund Pike, opened at the National Theatre's Lyttleton Theatre on 10 July 2025. It was also broadcast to cinemas through NT Live.