Ingenhoven Architects is an architectural firm based in Düsseldorf, Germany. Founded in 1985, the office became notable for its ecologically oriented designs for high-rise buildings. Until 2003 the company was named Ingenhoven Overdiek and Partner.
Ingenhoven Architects designed the RWE Tower in Essen (1991-96), a naturally ventilated double-skin facade high-rise building. Other low-energy office buildings by the office are the Lufthansa Headquarters in Frankfurt (2006), the European Investment Bank in Luxembourg (2008), the Breezé Tower in Osaka (2008), 1 Bligh Street building in Sydney (2006-11) and the Marina One complex in Singapore. 
- Binet, Helene: Ingenhoven Overdiek and Partner: Energies, Birkhäuser, Basel, 2002