Lawrence Timothy "Buck" Shaw (March 28, 1899 – March 19, 1977) was an American football player and coach. He was the head coach for Santa Clara University, the University of California, Berkeley, the San Francisco 49ers, the United States Air Force Academy and the Philadelphia Eagles. He attended the University of Notre Dame, where he became a star player on Knute Rockne's first unbeaten team. He started his coaching career with one year as head coach at North Carolina State and four years as a line coach at Nevada in Reno.