Frank Abney Hastings () (14 February 1794 – 1 June 1828) was a British naval officer and Philhellene. Born to a noble British family, he served in the Royal Navy, seeing action at the Battle of Trafalgar and the Battle of New Orleans. In 1819 he was discharged from the Royal Navy, and a few years later would travel to Greece to aid the Greeks in their struggle for independence, where he would take part in multiple battles, most notably the Battle of Itea, during which his ship the "Karteria," would become the first steam-powered warship to see combat.