Byrd, Oklahoma State Auditor and Inspector
Rudolph Hargrave, Former Chief Justice of the Oklahoma Supreme Court
Frank W. Davis (Oklahoma politician) (Class of 1958), late member of the Oklahoma House of Representatives
Robert S. Kerr, former Governor of the State of Oklahoma, and U.S. Senator
Ernest McFarland, former Arizona Governor
George Nigh, former Governor of the State of Oklahoma
Dustin Rowe, current Justice of the Oklahoma Supreme Court
=== Professional sports ===
Several ECU grads have excelled in the area of professional sports:
Harry Brecheen, baseball player
Armonty Bryant, football player
Brad Calip, football player
Mark Gastineau, football player
Todd Graham, football coach
Dewey McClain, football player
David Moore, football player
Trinity Benson, football player
Caleb Holley, football playereiver
Gil Morgan, golfer
Jerry Walker, baseball player
Lloyd Waner, baseball player
Paul Waner, baseball player
=== Other notable alumni ===
Wade Burleson, author, historian, and teacher
Hallie Brown Ford, …