Fort Zeelandia is located on Fort Island, a fluvial island of the Essequibo River delta in the Essequibo Islands-West Demerara region of Guyana. Not to be confused with Fort Zeelandia in Paramaribo, Suriname, the current brick fort was built in 1743 for the Essequibo colony, replacing an earlier wooden fort built in 1726, and is among the oldest structures in Guyana.