Cognomen Osmun (Osmun 
) , around the globe, is a rare family name. The family name Osmun is habitual in Cayman Islands, where it is quite a rare surname, the United States, where it is a rare surname, and Malaysia. In absolute terms, it is commonest in the United States, Malaysia, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Osmun | Malaysia, Australia, Singapore, United States, Canada |
| benajah osmun (b. 1750) |
|
|
| thomas embly osmun (b. 1826) |
|
|
| russell a. osmun |
|