USS Grayling (SP-1259)

The second USS Grayling (SP-1259) was a United States Navy patrol vessel in commission from 1917 to 1918.

Grayling was built as a civilian motorboat of the same name in 1915 by Boyden at Amesburg, Massachusetts. The U.S. Navy acquired her from her owner, E. E. Gray, on 7 May 1917 for World War I service as a patrol vessel. She was commissioned on 22 May 1917 as USS Grayling (SP-1259).

Assigned to the 1st Naval District and based at Boston, Massachusetts, Grayling served on section patrol duties in Boston Harbor for the remainder of World War I.

Grayling was returned to Gray on 30 November 1918.

Grayling should not be confused with USS Grayling (SP-289), another patrol vessel in commission during World War I.