John A. Degnan (born 1960) is an American politician. He was electe to one term as Mayor of Brewster, New York serving from 2005 to 2007. He has been involved in issues regarding illegal immigration in New York, as well environmental policy, having been called to testify in April of 2008 before the United States House of Representatives Infrastructure Subcommittee on Water Resources and the Environment discussing Superfund sites before members of Congress at the invitation of Congressman John Hall.