David Todd Wilkinson (13 May 1935 – 5 September 2002) was a world-renowned pioneer in the field of cosmology, specializing in the study of the cosmic microwave background radiation (CMB) left over from the Big Bang. He was born in Hillsdale, Michigan, and earned his Ph.D. in physics at the University of Michigan under the supervision of H. Richard Crane.He was a Professor of Physics at Princeton University from 1965 until his retirement in 2002.