Robert Jan Mrazek (born November 6, 1945) is an American former politician who served as a Democratic member of the United States House of Representatives, representing New York's 3rd congressional district on Long Island for most of the 1980s.
Also an author, he has written works of military fiction and non-fiction, set in the time periods of the American Civil War and World War II, and in 2016, co-directed and wrote his first feature film.