Last name Óm (Ohm 
, Óm 
) , all over the world, is quite a common family name. The surname Óm is characteristic of Germany, where it is quite a rare surname, Norway, and Myanmar. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Myanmar. Also, Óm is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ohm | South Korea, Germany, United States, Thailand, Myanmar |
| Óm | Algeria, Libya, Iraq, Egypt, Morocco |