Oscar Holter is a Swedish record producer and songwriter, based in the United States.
He was also a former member of band Necro Facility.
He is best known for producing songs with the likes of Taylor Swift, MARINA, Tove Lo, Charli XCX, DNCE, Hailee Steinfeld, Carly Rae Jepsen, Cher Lloyd, Christina Aguilera, Adam Lambert, and Troye Sivan.