Uelsen (German pronunciation: [ˈʔʏlsn̩]) is a community in the district of Grafschaft Bentheim in Lower Saxony.

The community of Uelsen lies in westernmost Lower Saxony, on the border with the Kingdom of the Netherlands, roughly 30 km north of Enschede and 15 km northwest of Nordhorn.

The state-recognized health resort of Uelsen is the Joint Community’s middle point and at the same time its seat.

Uelsen’s partner town is Tubbergen in the Netherlands.