Alpha Omega Alpha is an honor society in the field of medicine. It was established in 1902 at the University of Illinois College of Medicine and expanded to include chapters across the United States and in Canada and Lebanon.

Following is a list of chapters, with active chapters in bold and inactive chapters in italics.Root, William Webster and Alpha Omega Alpha. Alpha Omega Alpha (Medical Scholarship Society) History and Constitution. Ithaca: Cornell Publications Printing Company, 1922. p. 5. via Library of Congress"Chapter 3- Student Organizations, (2009). Legend and Lore: Jefferson Medical College. Paper 4. p. 110-111. via The Jefferson Digital Commons / Thomas Jefferson University