Stan "The White Rhino" Efferding (born November 6, 1967 in Portland, Oregon) is an American IFBB professional bodybuilder and a powerlifter competing in the Southern Powerlifting Federation (SPF). He currently holds the all-time raw world powerlifting records in the 275-pound-class in the Total without knee wraps (w/o 2,226.6 lbs) and in the Squat without knee wraps (854 lbs).