Funen (Danish: Fyn, pronounced [ˈfyˀn]) is the third-largest island of Denmark, after Zealand and Vendsyssel-Thy, with an area of 3,099.7 square kilometres (1,196.8 sq mi). It is the 165th-largest island in the world. It is located in the central part of the country and has a population of 469,947 as of 2020. Funen's main city is Odense, which is connected to the sea by a rarely-used canal. The city's shipyard, Odense Steel Shipyard, has been relocated outside Odense proper.
Funen belongs administratively to the Region of Southern Denmark. From 1970 to 2006, the island formed the largest part of Funen County, which also included the islands of Langeland, Ærø, Tåsinge, and a number of smaller islands.