Elvin John "Al" Cassell (December 3, 1896 – August 28, 1970) was an American football and basketball coach and college athletics administrator. He served as the head football coach at Olivet College in Olivet, Michigan from 1926 to 1929, and Jamestown College—now known as the University of Jamestown—in Jamestown, North Dakota, from 1930 to 1946 and again from 1951 to 1953. His football record at Jamestown was 65–49–13. Cassell was also the athletic director and head basketball coach at Jamestown from 1930 to 1964.