May-Britt Moser (born 1963) is a Norwegian psychologist and neuroscientist, who is a Professor of Psychology and Neuroscience at the Norwegian University of Science and Technology (NTNU). She and her former husband, Edvard Moser, shared half of the 2014 Nobel Prize in Physiology or Medicine, awarded for work concerning the grid cells in the entorhinal cortex, as well as several additional space-representing cell types in the same circuit that make up the positioning system in the brain. Together with Edvard Moser she established the Moser research environment at NTNU, which they lead. Since 2023 she has headed the Centre for Algorithms in the Cortex. Moser received her education as a psychologist at the Department of Psychology, University of Oslo and obtained a PhD in neurophysiology at the Faculty of Medicine in 1995; in 1996 she was appointed as associate professor in biological psychology at the Department of Psychology at the Norwegian University of Science and Technology (NTNU); she was promoted to professor of neuroscience in 2000. In 2002 her research group was given the status of a separate "centre of excellence".