Abstract: A new and improved golfer's elbow stiffener apparatus includes a stiff continuous tubular assembly which is supported by and which encompasses a user's elbow, an upper portion of a user's arm adjacent to and above the elbow, and a lower portion of the user's arm adjacent to and below the elbow. The continuous tubular assembly includes a first side edge and a second side edge. A flaccid closure assembly is connected to the continuous tubular assembly and is adapted to secure the continuous tubular assembly to the user's elbow and adjacent arm portions. The continuous tubular assembly may be made from substantially inflexible material. Alternatively, the stiff continuous tubular assembly is capable of being flexed outward and inward longitudinally for placement around the user's elbow and adjacent arm portions. An inner liner assembly may be attached to an interior surface of the continuous tubular assembly. The inner liner assembly is made from a cloth material.