Witold Więcek is a Non-Resident Senior Fellow at IFP and a Consulting Director at Development Innovation Lab, University of Chicago.

Witold is a statistician working in global health, epidemiology, and development economics. His recent work focuses on improving quality of drinking water, optimization of vaccines, meta-analyses, speeding up medical trials, and applying statistical methods in metascience. He is also a Non-Resident Fellow at Center for Global Development.

Previously, Witold spent over ten years working as a consultant biostatistician. He is based in the UK.