255 or S.C.-255, was an SC-1-class submarine chaser built for the United States Navy during World War I.

Cruiser Salem and armed yacht Wadena performed escort duty for the convoy.

On 24 April, SC-255 was taken under tow for a time by Bridgeport, and three days later, the convoy reached Ponta Delgada, Azores.

If she were, she would have received, as part of the new U.S. Navy letter-number scheme, the hull designation of PC-255.

This article about a specific ship or boat of the United States Armed Forces is a stub.