Andromeda Tower, Office skyscraper in Kaisermühlen, Austria

Andromeda Tower is a 29-storey office high-rise in Kaisermühlen, built 1996–1998 to plans by Wilhelm Holzbauer as the first building of Donau City. Its lower levels hold shops, service firms and restaurants, while the upper floors are offices; tenants include the permanent missions of Japan and Austria to the international organisations, Unisys, ATB AG and General Electric. The roof reaches 103.5 metres, or 113 metres with the antennas.

Built between 1996 and 1998, the Andromeda Tower was the first building in Donau City, a newly developing district in Vienna's 22nd municipal district. Its construction marked the start of modern urban development in the area.

The name refers to Andromeda from Greek mythology. The lower floors hold shops, service businesses and restaurants, while the upper floors are offices; tenants include the permanent missions of Japan and Austria to the international organizations in Vienna, plus Unisys, ATB AG and General Electric.

The tower stands in Donau City in Vienna's 22nd district, Donaustadt, near Kaisermühlen. Shops, service businesses and restaurants occupy the base floors, while the 29 upper floors hold offices. The office floors are generally open only to tenants and their authorised guests.

The developer WED sold the tower after completion for a reported 57 million euros to Karl Wlaschek, the founder of the Billa supermarket chain. The name refers to Andromeda from Greek mythology. Tenants include the permanent missions of Japan and Austria to the international organisations, alongside Unisys, ATB AG and General Electric.