Richard Thomas Gill (November 30, 1927 – October 25, 2010) was an American economist and opera singer. He held several teaching and administrative positions at Harvard University over 22 years. He was Assistant Dean of Harvard College, Allston Burr Senior Tutor (Dean) of Leverett House, and Teaching Fellow, Instructor, and Assistant Professor of Economics. In 1963, he received tenure as Lecturer on Economics and Master of Leverett House.