Last name Uohn (Uohn 
) , across the world, is a very rare surname. The cognomen Uohn is characteristic of Myanmar, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. More prevalently, Uohn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uohn | United Kingdom, Myanmar, United States, Malaysia, India |