Kollhoff-Tower is a 25-story, 103 metres (338 ft) skyscraper on the Potsdamer Platz in Berlin, Germany.
Together with the Bahntower 103 metres (338 ft) to the north and the Forum Tower designed by Renzo Piano (together with Atrium Tower and The Playce shopping center part of the debis complex) to the south, it forms a high-rise ensemble in the middle of the city.
Kollhoff and Timmermann Architekten also designed the nearby Delbrück high-rise of the Beisheim Center.
Both buildings are designed in the style of early 20th century high-rise architecture.
Since April 15, 2000, there has been a viewing platform on the top level, to which the fastest passenger elevator in Europe leads.