Orm (in Old Norse and in modern Danish, Swedish, Norwegian (bokmål and nynorsk) the word for "snake", "worm" or "dragon") became an Anglo-Saxon personal name during period of the Danelaw. It may also refer to:

• Orm, the author of the 12th-century Ormulum
• the commissioner of the Kirkdale sundial
• the Ocean Master, a DC Comics supervillain and half-brother to Aquaman