HMS Grecian was a sixteen-gun built for the Royal Navy during the 1830s.
Grecian had a length at the gundeck of and at the keel. She had a beam of , a draught of and a depth of hold of . The ship's tonnage was 484 <small></small> tons burthen. Grecian was armed with sixteen 32-pounder carronades. The Acorn class had a crew of 110âÂÂ30 officers and ratings.
Grecian, the third ship of her name to serve in the Royal Navy, was ordered on 31 December 1835, laid down in July 1837 at Pembroke Dockyard, Wales, and launched on 24 April 1838. She was completed on 10 December 1838 at Plymouth Dockyard and commissioned on 19 September of that year.