Jack Abramoff is an American lobbyist, businessman, movie producer and writer.

Jack Abramoff was College Republican National Committee National Chairman from 1981 to 1985, a founding member of the International Freedom Foundation, and served on the board of directors of the National Center for Public Policy Research. From 1994 to 2001 he was a top lobbyist for the firm of Preston Gates & Ellis, and then for Greenberg Traurig until March 2004.

Abramoff's lobbying and the surrounding scandals and investigation are the subject of two 2010 films: the documentary Casino Jack and the United States of Money (2010), released in May 2010, and the feature film Casino Jack (2010), released on December 17, 2010, starring Kevin Spacey as Abramoff.