Jules S. Bacon (July 8, 1917 – January 13, 2007) was an American professional bodybuilder.

He began weight training at age 20 and came second in the 1941 Mr. America bodybuilding contest.

[3] Bacon was a lifelong friend of John Grimek.

He was inducted into the International Federation of Bodybuilding & Fitness Hall of Fame.

[3] Bacon died in York, Pennsylvania, aged 89.