Lynn Osbert "Pappy" Waldorf (October 3, 1902 – August 15, 1981) was an American college football player and coach. He received the first national collegiate football coach of the year award in 1935. Waldorf became known for his motivational coaching, connection with his players and the extremely organized and consistent coaching technique. He won conference titles with each of the five teams that he coached. Waldorf coached from 1925 to 1956, serving as the head football coach at Oklahoma City University, Oklahoma State University, Kansas State University, Northwestern University, and the University of California, Berkeley. Waldorf's career coaching record was 174–100–22. Waldorf was inducted into the College Football Hall of Fame in 1966.