Jackson Zophar Howell (born January 29, 1899 – February 25, 1967) was an American competition swimmer who represented the United States at the 1920 Summer Olympics in Antwerp, Belgium. Howell competed in both the men's 200-meter breaststroke and the men's 400-meter breaststroke, and finished in fourth place in both event finals.
- ^ a b Sports-Reference.com, Olympic Sports, Athletes, Jack Howell. Retrieved November 30, 2012.
- Jack Howell – Olympic athlete profile at Sports-Reference.com