USS Mahopac (ATA-29) was a United States Navy fleet tug launched in 1919.

[1] She was a Bagaduce-class ship,[2] a class of 19 steel tugs begun in 1918 which preceded the Navajo-class (later renamed the Cherokee).

The Bagaduce-class tugs were designed to serve as minesweepers and conduct heavy-duty towing work at navy yards.

It was one of three vessels of that name in the U.S. Navy to date, after the town of Lake Mahopac, New York.

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