In May 1800 "Pigmy" was part of the Royal Navy squadron assisting at the siege of Genoa. She shared with numerous other British vessels in the proceeds of the row galley cut out by their boats on 21 May, the capture on 23 May of the "St Jean Baptiste", the capture of the ketch "Albanaise" on 4 June that the Royal Navy took into service, and the surrender of the city that same day.