Louis Simmons (born 12 October 1947) is a former American powerlifter and current strength coach.
He is noted for developing the Westside Conjugate method of training and applying it to powerlifting and other sports, as well as inventing several pieces of strength training equipment.
Westside Barbell is a private, invitation-only, elite training facility in Columbus, Ohio that was created by Simmons.
Simmons is one of only five lifters to total Elite in five different powerlifting weight classes.
He has totalled Elite in various power-lifting organizations.