John Komnenos
John Komnenos or Comnenus may refer to:
- John Komnenos , Byzantine general and progenitor of the Komnenian dynasty
- John Komnenos , Byzantine nobleman and official
- John [II Komnenos], Byzantine emperor from 1118 to 1143
- John Komnenos , Byzantine governor of Dyrrhachium
- John Tzelepes Komnenos,, Byzantine nobleman who defected to the Seljuk Turks
- John Komnenos Vatatzes, Byzantine general
- John [Doukas Komnenos], military governor of Cyprus
- John Komnenos , second son and co-emperor of Andronikos I
- John Komnenos the Fat, Byzantine nobleman who attempted a usurpation in 1200
- John Komnenos Asen, ruler of the Principality of Valona