Wainscott is a hamlet in the Town of East Hampton in Suffolk County, New York, United States, on the South Fork of Long Island.

[3] The hamlet was named after Wainscott, Kent, a village north of Maidstone, England, an area immortalized in Charles Dickens' Great Expectations and from which most of the early settlers of East Hampton came.

[4] The Wainscott School, founded in 1730, was the last public one-room schoolhouse operating in New York until an annex was built in 2008.

The exclusive Georgica Association has a 100-acre (0.40 km2) subdivision on the west side of the pond.

[6] It was the beach house featured in the 2004 film Eternal Sunshine of the Spotless Mind.

In 2020, Citizens For The Preservation of Wainscott, a non profit organization, started a petition to incorporate the community.

A driving force of the petition was to fight a proposal for the preferred location for the 138-kilovolt electricity transmission line from the South Fork Wind Farm to come ashore in the community at Beach Lane en route to an electrical substation in East Hampton.

The petition was denied in 2021 by the East Hampton Town Supervisor, in part for only receiving 19 valid signatures.