Matthew Robert Patrick (born November 15, 1986), also known by his nickname MatPat, is an American former YouTuber; co-creator of the YouTube channels The Game Theorists, The Film Theorists, GTLive, The Food Theorists and The Style Theorists; and co-founder, president, and CEO of Theorist Media. His first and most popular channel was The Game Theorists, in which he and several other content creators have uploaded videos mostly analyzing video games from an educational perspective.