John Christian Miller (born 1942 in Brooklyn) is an American author and screenwriter. He is best known for his work on National Lampoon magazine and the film Animal House, which he also acted in with co-writer/actor Douglas Kenney. The latter was inspired by Miller's own experiences in the Alpha Delta Phi fraternity at Dartmouth College, in which he went by the name "Pinto". Miller graduated from Dartmouth in 1963.