Raimo P. Hämäläinen (b. 1948, Helsinki) is a professor of Applied Mathematics and Operations Research at the Helsinki University of Technology (TKK), Finland. Professor Hämäläinen is the founder and director of the Systems Analysis laboratory at TKK, and his research interests cover game theory, decision sciences, energy modelling and resource management.
In 2004, The International Society for Multiple Criteria Decision Making awarded Professor Hämäläinen for his work on MCDM research.