Mechtersen is a municipality located in the district of Lüneburg within the state of Lower Saxony, Germany. It functions as a local administrative unit and is geographically situated in northern Germany.
The municipality is part of the Samtgemeinde Bardowick, which serves as its larger collective administrative association. Aside from these regional affiliations, Mechtersen is defined by its status as a rural community within the Lüneburg district.