The second USS Newark (SP-266) was a United States Navy minesweeper and tug in commission from 1917 to 1919.

Newark was built as a commercial tug of the same name in 1913 by the Skinner Shipbuilding Company at Baltimore, Maryland.

The U.S. Navy acquired her from her owner, the Delaware, Lackawanna and Western Railroad Company, on 18 August 1917 for World War I service as a minesweeper and tug.

In February, she operated as a tug, breaking ice in Marine Basin, helping six submarine chasers out of the harbor, and towing ships from docks to coal barges.

After the war, on 22 January 1919, Newark steamed up to Fort Lafayette in New York Harbor, towing barges and ships such as Lowell to the Lackawanna Terminal coal docks in Hoboken, New Jersey.