Cherry Grove (often referred to locally as The Grove) is a hamlet in the Town of Brookhaven, Suffolk County, New York, United States. It is located on Fire Island, a barrier island separated from the southern side of Long Island by the Great South Bay. The hamlet has approximately 300 houses on , a summer seasonal population of 2,000 and a year-round population of 15.
Cherry Grove, along with nearby Fire Island Pines, is considered one of the most popular lesbian, gay, bisexual, and transgender (LGBT)-accepting resort communities in the United States. The Grove is reputedly the nation's first and oldest LGBT community.