Yes. Rusting of iron is an electrochemical phenomenon because this is possible due to formation of a small electrochemical cell over rough surface of iron and the following redox reaction takes place there in that cell.
Oxidation Fe(s) → Fe2+(aq) + 2e-
Reduction O2 + 4H+ 4e- → 2H2O
e- + ½ O2 + 2H2O + 2Fe2+ → Fe2O3 + 4H+
