Joe Hall Morris (1922 – September 11, 2003) was an American oral surgeon and educator at the University of Tennessee who developed a Bi-Phase External Fixation Splint. Further key contributions to the field of modern dentistry include the Orthognathic Surgery Simulating Instrument, or OSSI. His work in the biomechanical aspects of oral and maxillofacial surgery have had an impact on the fields of maxillofacial trauma and Orthognathic surgery.