William Stephen Arnsparger (December 16, 1926 – July 17, 2015) was an American college and professional football coach. He was born and raised in Paris, Kentucky, served in the United States Marine Corps during World War II, and graduated from Miami University (Ohio) in 1950. Immediately upon graduation, Arnsparger was hired as an assistant coach with the Miami football program, beginning a long career in the profession.