Undeloh (Low German: Unnel) is a village in the district of Harburg, in Lower Saxony, Germany.

Undeloh lies on the Lüneburg Heath near its highest hill, the Wilseder Berg.

Undeloh linked by KVG regional bus lines number 4207 (to Hanstedt/Hamburg-Harburg) and 5200 (to Salzhausen/Lüneburg).

In addition public schoolbuses run to schools at Egestorf, Hanstedt and Buchholz (lines 4611 and 4631).

In addition tradesmen came from around the region in order to see whether it would be a dry or wet year.