A rotating barbell support rotatably holds a barbell in at least a first position and a second position by rotating the barbell between such positions. A user may lie on a bench and rotate the barbell to his or her lifting sweet spot while the rotating barbell support continues to support the weight of the barbell. The user may then begin one or more bench presses from his or her sweet spot without the need to maneuver the full weight of the barbell or the need for a spotter. The rotating barbell support may have a pair of biased support assemblies, each having a support arm and a post. The support arm may have a weight, spring, or elastic element attached thereto, while the post may have a barbell holder. The posts of the support assemblies may be biased to a backward tilted angle by the weight.