Family name มณีขวัญ (มณีขวัญ 
, Manikhwan , Manikwan 
) , throughout the world, is a rare cognomen. The last name มณีขวัญ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is an extremely rare surname. Much less frequently, มณีขวัญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| มณีขวัญ, Maneekwan, Manikhwan | Thailand |
| Manikwan | Thailand, Malaysia |