Nathaniel Martello-White (born January 1983) is a British actor and writer. Having appeared in several productions of the National Youth Theatre, he graduated from RADA in 2006 and since has performed in films, television shows and theatre.

His film credits include Deadmeat (2007), The Sisterhood of the Traveling Pants 2 (2008), Red Tails, Hard Boiled Sweets and Life Just Is (all 2012). He has also appeared in the television series Doctors, Trial & Retribution, Party Animals, Mongrels, Law & Order: UK, Misfits, Death in Paradise, Silk, Horrible Histories and Collateral. In 2020, he portrayed Rhodan Gordon in Mangrove, part of Steve McQueen's Small Axe series.