Hewlett Harbor is a village in the Town of Hempstead in Nassau County, on Long Island, in New York, United States.

As of July 2024, the Mayor of Hewlett Harbor is Dominic Calandrella, the Trustees are Gil Bruh, Roman Mazo, Igor Noble and Lorie Rudister.

[10][14] Like the rest of New York, Hewlett Harbor is represented in the United States Senate by Charles Schumer (D) and Kirsten Gillibrand (D).

[15] The Village of Hewlett Harbor is primarily located within the boundaries of (and is thus served by) the Hewlett-Woodmere Union Free School District, while a smaller section is located within the boundaries of (and is thus served by) the Lynbrook Union Free School District.

[10] The nearest Long Island Rail Road station to the village is Hewlett on the Far Rockaway Branch.

[21][23] Hewlett Harbor, in its entirety, is served by the Nassau County Sewage District's sanitary sewer network.

[10] Trash collection services in Hewlett Harbor are provided by the Town of Hempstead's Sanitation District 1.

[10] Notable current and former residents of Hewlett Harbor include: The village of Hewlett Harbor was specifically mentioned by TV personality Johnny "Drama" Chase on HBO's Entourage on the Sunday, May 13, 2007, episode entitled "The Resurrection".

The series' name is a reference to the real "Five Towns", an informal grouping of villages and hamlets located on Long Island, New York's South Shore of western Nassau County.

On the episode aired on April 13, it was said that the Village of Hewlett Harbor was the setting of the fictional NBC TV series called Five Towns.