Rhenen is a municipality and a city in the central Netherlands. The municipality also includes the villages of Achterberg, Remmerden, Elst and Laareind. The town lies at a geographically interesting location, namely on the southernmost part of the chain of hills known as the Utrecht Hill Ridge, where this meets the river Rhine. Because of this Rhenen has a unique character with quite some elevation through town.

The Grebbe Line was a forward defence line of the Dutch Water Line, based on inundation. The Grebbe Line ran from the Grebbeberg in Rhenen northwards until the IJsselmeer.