Tespe is a municipality located in the district of Harburg within the state of Lower Saxony, Germany. It is situated on the left bank of the river Elbe, positioned approximately 5 kilometers southeast of Geesthacht and about 30 kilometers southeast of Hamburg.
The municipality abuts on the district of Lüneburg to its south and west. It serves as a geographic point within the regional landscape of Lower Saxony, defined by its proximity to major waterways and neighboring districts.