Thendara is a hamlet and census-designated place (CDP) in Herkimer County, New York, United States.

Thendara is located in the Adirondack Park, in the southern part of the town of Webb, west of Old Forge on Route 28.

Thendara station is a station on the Adirondack Railroad; it was formerly the northern terminus of most northbound trains from Utica, which was extended to Tupper Lake in late spring, 2023.

Writer and acamedician Camille Paglia spent summers at Girl Scouts camp in Thendara.

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