Family name มหรรณพ (Ocean 
, มหรรณพ 
, Mahannop 
) , across the world, is quite a common surname. The cognomen มหรรณพ is habitual in Jersey, where it is quite a common surname, Maldives, where it is quite a rare surname, and Taiwan. In absolute terms, it is commonest in Indonesia, Bangladesh, and the United States. Also, มหรรณพ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ocean | Bangladesh, Taiwan, Indonesia, Democratic Republic of the Congo, China |
| มหรรณพ | Thailand |
| Mahannop | Thailand, United States |