Larchmont Harbor is the name of a bay located on the north shore of Long Island Sound, in the village of Larchmont in Westchester County, New York.

[1] Larchmont Harbor lies between Long Beach Point and Umbrella Point, and northward of Execution Rocks lighthouse.

The harbor is the home of the Larchmont Yacht Club.

The harbor is full of mooring buoys for small yachts during the summer season.

The entrance Of Larchmont Harbor is on either side of Hen and Chickens, a reef bare at low tide in places near the middle.