John Swihart is an American musical composer for film and television. He is perhaps best known for his score to Napoleon Dynamite, Youth in Revolt, Employee of the Month, and his music for the TV shows How I Met Your Mother, and Go On.

Napoleon Dynamite is a 2004 American independent coming of age teen comedy film produced by Jeremy Coon, Chris Wyatt, and Sean Covel, written by Jared and Jerusha Hess, and directed by Jared Hess. The film stars Jon Heder in the role of the titular character, a nerdy high-school student who deals with several dilemmas: befriending an immigrant who wants to be class president, awkwardly pursuing a romance with a fellow student, and living with his quirky family.