USS Zipalong (SP-3) was an armed motorboat that served in the United States Navy as a patrol vessel during 1917.

Zipalong was a wooden-hulled motorboat built in 1907 at Boston, Massachusetts, by George Lawley & Son with the name Gansetta, which was subsequently renamed Zipalong.

The U.S. Navy acquired Zipalong in the spring of 1917 from Albert and Leonard Schwarz and W. W. Miller for service in World War I.

With her section base at Cape May, New Jersey, Zipalong conducted local section patrols within the 4th Naval District into the autumn of 1917.

Decommissioned on 27 November 1917 at Philadelphia, Zipalong was returned to her owners in early 1918 and resumed her civilian pursuits.