Altes Postamt Oldenburg, Historical post office building in Oldenburg, Germany.

The Altes Postamt Oldenburg is a former post office building in downtown Oldenburg with grand facades and detailed architectural work. Its imposing structure shows the craftsmanship and effort that went into German imperial public buildings.

The Post- und Telegrafenamt was built in stages from 1901 to 1905 to designs by Ernst Hake with Ewald Freiherr von Rechenberg, at a cost of one million Goldmark. Grand Duke Friedrich August attended its inauguration on 8 December 1902. In 1943 the building lost its role as Oberpostdirektion, which passed to the RPD Bremen; the Deutsche Bundespost used it until 1977.

The building's name, Altes Postamt, marks it as the former imperial post and telegraph office. In the Schalterhalle, four Oldenburg views painted in tempera on lime by Grete Waldau drew particular attention. The sandstone portal figures by Otto Stichling personify various professions.

The building occupies a slightly trapezoidal plot bounded to the north and east by Poststraße, the continuation of the Stau. Its main front faces north, with the main portal set behind a two-arch loggia; the two inner courtyards lie to the south. The former telegraph tower stands on the west wing, opposite the semicircular stair tower at the southeast corner of the east wing.

Four tempera paintings on lime by Grete Waldau decorated the counter hall, showing Oldenburg views. Look for the two-column loggia before the main portal and the corner towers with curved hoods. The telegraph tower stood opposite the round stair tower on the east wing.