Trevor Bentham (born in England in 1943) is an English former stage manager and screenwriter. He is a screenwriter of works including A Month by the Lake (filmed in 1995) and The Clandestine Marriage (in 1998).
For 22 years, he was the partner of the late renowned English actor Sir Nigel Hawthorne. They met in 1968 when Bentham was stage-managing the Royal Court Theatre. From 1979 until Hawthorne's death in 2001, they lived together in Radwell near Stotfold in Hertfordshire, England (until a motorway service station was planned outside their drive). The two of them became fund raisers for the North Hertfordshire hospice and other local charities. Bentham was diagnosed with muscular dystrophy in 1997.