Family name โอ้ว (Ow 
, Ohw 
, โอ้ว) , across the world, is a common surname. The surname โอ้ว is characteristic of Singapore, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Switzerland. In absolute terms, it most frequently occurs in South-eastern Asia, particularly Singapore, Myanmar, and Malaysia. Very seldom, โอ้ว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ow | Malaysia, Singapore, China, Myanmar, Indonesia |
| Ohw | Philippines, Germany, United States, Thailand |