Gesa Ziemer (Prof. Dr. phil.) is Professor for Digital Urban Cultures at the HafenCity University Hamburg.

She heads the CityScienceLab, a cooperation with the MIT Media Lab (Cambridge, MA, USA), which researches on the future of cities (with a special focus put on digitalisation).

She is also the academic director of UNITAC, a United Nations Innovation and Technology Lab (UN Habitat, OICT) that conducts global research on the use of technology in informal settlements. 

She is co-founder of the digital geo-referenced workspace comaps. 

In 20/21 she was a fellow of the Humboldt Foundation (Feodor-Lynen Program) at the Harvard Kennedy School, Cambridge, MA, USA.

Her research foci are: the digital city, new forms of collaboration and urban spaces.

She is a member of the Accreditation Committee of the Scientific Council of Germany.