Lake Gleneida is a controlled lake in the hamlet of Carmel within the Town of Carmel in central Putnam County, New York. Originally a smaller natural water body, Shaw's Pond, it was dammed by New York City in 1870 and enlarged to 168 acres (68 ha) for inclusion in its water supply system. It is part of the New York City water system's Croton Watershed.

Carmel Hamlet, commonly known simply as Carmel, is a hamlet and census-designated place (CDP) located in the Town of Carmel in Putnam County, New York, United States. As of the 2010 census, the population was 6,817.