Zollamt Rotersand, Cultural heritage customs building in Lehe district, Bremerhaven, Germany

The Zollamt Rotersand is a customs building at Franziusstrasse in Bremerhaven, featuring a two-story red brick structure with a semi-circular corner bay and horizontal window arrangements. The edifice has a distinctive corner design that sets it apart from other port structures.

The customs office was built in 1935–36, prompted by the 1936 Berlin Olympics, for which many foreign guests were expected by ship. Bremerhaven, called the "Gateway to the World", had long been the last stop in Germany for millions of emigrants bound for America. The building was placed under Bremen monument protection in 2009.

The customs office is named after the Roter Sand lighthouse, not a harbour district. Its name recalls the Elbe Weser mouth lightship station that guided ships toward Bremerhaven. The building marks the former main entrance to the Kaiserhafen and Nordhafen, where a municipal tram once ran a single-track curve from Rickmersstraße into Bürger.

The building is viewable from the outside and sits within an active port area. Access to the immediate surroundings may be restricted depending on port operations, so it is wise to check accessibility information beforehand.

A ceramic eagle from 1936 adorns the building's entrance and reflects the stylistic preferences of the construction period. This detail is often overlooked today even though it documents the artistic design of port structures from that era.