Eibergen is a town and former municipality in Gelderland in the Eastern Netherlands. It is part of the Achterhoek cultural region. The administrative cooperation of about 20 municipalities in this region is the Regio Achterhoek. On 1 January 2005 the municipality of Eibergen merged with the neighbouring municipalities of Neede, Borculo and Ruurlo into the new municipality of Berkelland. As of 2021, the town had a population of 11,210.