Luke Antony Newman Treadaway is a British actor and singer. He won an Olivier Award for Best Leading Actor for his performance as Christopher in the National Theatre's production of The Curious Incident of the Dog in the Night-Time in 2013. He has also been nominated for an Evening Standard Theatre Award.

The Curious Incident of the Dog in the Night-Time is a play by Simon Stephens based on the novel of the same name by Mark Haddon. During its premiere run, the play tied the record for winning the most Olivier Awards (seven), including Best New Play at the 2013 ceremony. The play is a National Theatre Production, in association with Frantic Assembly, who specialised in the movement direction.