SS John W. Griffiths was a Liberty ship built in the United States during World War II.

She was named after John W. Griffiths, a naval architect who was influential in his design of clipper ships.

John W. Griffiths was laid down on 13 December 1943, under a Maritime Commission (MARCOM) contract, MC hull 1548, by J.A.

On 19 May 1946, she was laid up in the National Defense Reserve Fleet, in the James River Group, in Lee Hall, Virginia.

In 1963, she was sold to Sicilarma Societe di Navigazione per Azioni, Genoa, and renamed Imera.