Fort Zeelandia () was a fortress built over ten years from 1624 to 1634 by the Dutch Verenigde Oostindische Compagnie, in the town of Anping (Tainan) on the island of Formosa (present-day Taiwan), during their 38-year rule over the western part of that island. Although the site was previously named Orange City (奧倫治城), Anping City (安平城), and Taiwan City (台灣城), the current name of the site in Chinese is Anping Fort (安平古堡).