The Nimrod Theatre Company, commonly known as The Nimrod, was an Australian theatre company based in Sydney.

The company's original theatre located in Nimrod Street, Kings Cross is now home to Griffin Theatre Company.

The company moved in 1974 to Belvoir Street, Surry Hills, but retained its original name.

Subsequently, the Surry Hills venue became known as the Belvoir Street Theatre.

Notable Nimrod alumni include: Geoffrey Rush, Judy Davis, Colin Friels, Hugo Weaving, Barry Otto, Mel Gibson, Donal Gibson, Jacki Weaver, Baz Luhrman, Bill Hunter, Max Cullen, Angela Punch McGregor, Robert Coleby, Wendy Hughes, Robyn Nevin, Noni Hazelhurst, Jon Blake, Ruth Cracknell, Bob Maza, Michael Caton, Bruce Spence, Max Gillies, Warren Mitchell, Simon Burke, John Hargreaves, Ivar Kants, Gillian Jones, Kris McQuade, Ray Meagher, Chris Haywood, Mark Lee, Tina Bursill, Tony Llewellyn-Jones, Max Phipps, John Wood, John Clayton, Peter Sumner, Peter Whitford, Cornelia Frances, Jean Kittson, Lynette Curran, Paul Chubb, Kate Fitzpatrick, Drew Forsythe, Nick Enright, Helen Morse, Diane Craig, Robert Grubb, Peter Carroll, Carole Skinner, Catherine Wilkin, Peg Christensen, Gary Day, James Elliott, Henri Szeps, Kerry Walker, Anna Volska, Robert Menzies, Julie McGregor, Judi Farr, Nancye Hayes, Margo Lee, Robin Ramsay, Melissa Jaffer, Reg Gorman, Jon Ewing, Heather Mitchell, Harold Hopkins, Cathy Downes, Michele Fawdon, Ron Haddrick, Deidre Rubenstein.