Hudson Institute is an American conservative think tank based in Washington, D.C. It was founded in 1961 in Croton-on-Hudson, New York, by futurist Herman Kahn and his colleagues at the RAND Corporation.

Croton-on-Hudson is a village in Westchester County, New York, United States. The population was 8,327 at the 2020 United States census over 8,070 at the 2010 census. It is located in the town of Cortlandt as part of New York City's northern suburbs. The village was incorporated in 1898.