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Godfrey de Saint-Omer (12th century), one of the 12th century founders of the Knights Templar •
Walter of Saint Omer (died 1174), Prince of Galilee •
Nicholas I of Saint Omer (11??–121?), French knight •
Bela of Saint Omer (died 1258), Lord of one half of Thebes •
Nicholas II of Saint Omer (died 1294), Lord of one half of Thebes •
Otho of Saint Omer (died 1299), Lord of one half of Thebes •
John of Saint Omer (13th century), Marshal of Achaea •
Nicholas III of Saint Omer (died 1314), Lord of one half of Thebes and Marshal of Achaea ==Places==