Janna Magrietje (Marjan) van den Akker (born 1965)[1] is a Dutch computer scientist and operations researcher specializing in scheduling algorithms with applications including transportation[2] and software engineering. She is an associate professor in the Department of Information and Computing Sciences at Utrecht University, where she directs the Utrecht AI & Mobility Lab and Robust Rail Lab. She also holds a research affiliation with KLM Royal Dutch Airlines.[3]