Peter Mensah is a Ghanaian-British actor, based in Canada. He is best known for his role as Oenomaus on the Starz television series Spartacus (2010–2013). He has also appeared in such films as Tears of the Sun, Hidalgo, The Incredible Hulk, 300, and Avatar.

Tears of the Sun is a 2003 American action thriller film depicting a fictitious U.S. Navy SEAL team rescue mission amidst the 21st-century version of the civil war in Nigeria. Lieutenant A.K. Waters commands the team sent to rescue U.S. citizen Dr. Lena Fiore Kendricks before the approaching rebels reach her jungle hospital. The film was directed by Antoine Fuqua.