Helmuth F. "Helly" Orthner (March 27, 1941 – March 16, 2009) was a pioneering American scientist in the field of medical informatics. He was one of the founders of the Symposium on Computer Applications in Medical Care (SCAMC), which later grew into the American Medical Informatics Association. He was a Fellow of the American College of Medical Informatics.

• Medical Informatics Loses Pioneer. In Memoriam: Dr. Helmuth Orthner (1941-2009)
• "You Have to Be There" - Twenty-five Years of SCAMC/AMIA Symposia
• Obituary (including Biography) on Legacy.com