Curtis William Tarr (September 18, 1924 – June 21, 2013) was an American academic best known for his role in the reform of the Selective Service System—in particular, of the draft lottery, which had been criticized for being insufficiently random. Tarr also served as the seventh dean of the S.C. Johnson Graduate School of Management at Cornell University, and as the twelfth president of Lawrence University in Appleton, Wisconsin. Tarr earned his B.A. from Leland Stanford Jr. University, his M.B.A. from Harvard University and returned to Stanford to earn his Ph.D. in American history.