Oberpostdirektion Frankfurt am Main, Cultural heritage monument in Westend-Süd, Frankfurt, Germany

The Oberpostdirektion Frankfurt am Main is an administrative building in neobaroque style with a curved facade and three-story ionic columns facing Ludwig-Erhard-Anlage. Today, the renovated structure contains 164 residential units that have completely replaced its original function as a government office.

Construction of the postal building began in 1905 under architect Ernst Hake and was completed in 1907, when 241 employees started working there. During World War II, the structure suffered significant damage from air raids but was reconstructed relatively quickly, while the main post office remained destroyed.

The building's name recalls the Oberpostdirektion, the postal authority that moved here in April 1907 with 241 employees after outgrowing the Hauptpost on the Zeil. Its neo-baroque facade, with a central risalit and three-storey Ionic colonnade, was meant to signal the authority's rank. Since 2015 the CG Gruppe has owned it, and it is being converted into 164 flats marketed as "Grand Ouest".

The building stands at Ludwig-Erhard-Anlage 60–64 in the Westend, where the street bends toward the Senckenberganlage; the facade follows that curve, so the central risalit with its ionic columns is best seen from the opposite side of the boulevard. The address is a private residential conversion, so visits are limited to the exterior.

The building's original mansard roof was replaced by two full storeys, which heightens the effect of the historicist facade. Since 2015 the property has belonged to the CG Gruppe, and it is being converted into 164 owner-occupied flats marketed as "Grand Ouest".