HMS Duff

One ship of the Royal Navy has borne the name HMS Duff, whilst another was planned:


 * HMS Duff was to have been a Captain-class frigate. She was however retained by the US Navy as the Evarts-class destroyer escort USS LeHardy.
 * HMS Duff was a Captain-class frigate, previously the USS Lamons. She was launched in 1943, returned to the US Navy in 1945 and scrapped in 1946.