Louis Nowra (born 1950) is an Australian writer, playwright, screenwriter and librettist. His most significant plays are Così, Byzantine Flowers, Summer of the Aliens, Radiance, and The Golden Age. In 2007 he completed the The Boyce Trilogy for Griffin Theatre Company, consisting of The Woman with Dog's Eyes, The Marvellous Boy and The Emperor of Sydney. Many of his plays have been filmed.