On the Caltech campus, several physical features, rooms, awards, and a professorship were named in honor of Millikan, including the Millikan Library, which was completed in 1966. In January 2021, the board of trustees voted to immediately strip Millikan's name from the Caltech campus because of his association with eugenics. The Robert A. Millikan Library has been renamed Caltech Hall. In November 2021, the Robert A. Millikan Professorship was renamed the Judge Shirley Hufstedler Professorship.