Wee Teck, Gan (born March 11, 1972) is a Malaysian mathematician, and Distinguished Professor of Mathematics at the National University of Singapore (NUS).
He is known for his work on automorphic forms and representation theory in the context of the Langlands program, especially the theory of theta correspondence, the Gan–Gross–Prasad conjecture and the Langlands program for Brylinski-Deligne covering groups.