Ken Pfeuffer is a researcher, designer, and professor for future user interfaces at Aarhus University, where he is leading the Extended Interaction group that specializes in Human-Computer Interaction (HCI) and Spatial Computing for Extended Reality (XR).

He has published over 75 scientific papers and received awards at ACM CHI, UIST, and SUI, including the ACM SIGCHI Special Recognition Award (2025). He is affiliated with the AI Danish Pioneer Center and COGAIN and is regularly in program committees for HCI and XR research conferences and journals.

He earned his PhD from Lancaster University (UK), completed a postdoc at Bundeswehr University (Germany), and interned at Microsoft and Google Research US. He has pioneered interaction paradigms such as Gaze+Pinch and Direct-Indirect gestures, shaping 3D interfaces in emerging spatial computing technology.