HMS Shelanagig (or Sheelanagig, or other variants), was a sloop of 16-guns purchased in the West Indies in 1780 for the Royal Navy.

[1][c] Still, on 28 May 1781 near St Lucia Shelanagig encountered the French fleet under Comte de Grasse, which captured her.

[7] Shelanagig's officers were paroled after the capture of their vessel, with Popham returning to Demerara and Shepherd and ship's master Edward Park(e) travelling direct to England.

All three returned to active service, with Popham being promoted to First Lieutenant aboard HMS Alarm.

[8] This article includes data released under a Creative Commons Attribution-ShareAlike 3.0 Unported UK: England & Wales Licence, by the National Maritime Museum, as part of the Warship Histories project.