Marcus D is an American producer from Seattle, Washington and currently based in Tokyo where he runs his record label, Absolutzero. He is also one-half of Bop Alloy.

He is a classical pianist with an orchestral background and has collaborated with American hip hop legends like Del the Funky Homosapien, Royce Da 5'9", Saigon, Planet Asia, Skyzoo, Crooked I, and Termanology to name a few. Marcus D is well-known for his contributions to the Japanese hip-hop scene and is often compared to the late Japanese producer Nujabes.