An electrode reduction mechanism is reported for two aromatic‐2,5‐substituted oxadiazoles in DMF solvent as part of a continuing study of the electrochemistry of five‐membered nitrogen oxygen heterocyclics. Polarography, cyclic voltammetry, chronoamperometry, and uv spectroscopy were techniques employed in the study. The effects of a proton donor on the stability of reduction intermediates is discussed.