| John of Saint Omer | |
|---|---|
_of_Thebes_(Schlumberger,_1897).jpg) Seal of John of Saint Omer | |
| Lord of a third of the Barony of Akova, Marshal of the Principality of Achaea | |
| Reign | 1276–unknown |
| Successor | Nicholas III of Saint Omer |
| Spouse | Margaret of Passavant |
| Issue | Nicholas III of Saint Omer |
| Father | Bela of Saint Omer |
| Mother | Bonne de la Roche |
| Religion | Roman Catholic |
John of Saint Omer (Jean de Saint-Omer) was baron of a third of Akova and marshal of the Principality of Achaea.