Fort Apollonia is a fort in Beyin, Ghana. The name Apollonia was given to the area by a Portuguese explorer who sighted the place on the Feast of Saint Apollonia, 9 February. In 1691, a British trading post was erected at this site, which between 1768 and 1770 was extended into a fort. After the abolition of slave trade, the fort was abandoned in 1819, but it was again occupied from 1836 onwards.