Matt McCarthy (born November 9, 1979) is an American comedian, actor, writer, and improviser living in Los Angeles. He is best known for his appearances on Conan and CollegeHumor.com and for hosting the We Watch Wrestling Podcast. McCarthy co-stars as Carl on the  CBS show How We Roll.

Matthew McCarthy, the youngest of three, was born in Providence, Rhode Island, at the old Women & Infants Hospital on Maude Street. He grew up in an Irish-Catholic home in Rumford, Rhode Island. He attended St. Margaret's School and La Salle Academy.