Surname วาสุ (Vasu 
, Wasu 
, วาสุ ) , in the world, is a common family name. The cognomen วาสุ is habitual in Fiji, where it is quite a common surname, United Arab Emirates, and Qatar (explore the name in all countries). In absolute terms, it is commonest in India, Malaysia, and Ethiopia. More frequently, วาสุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vasu | Saudi Arabia, United Arab Emirates, Malaysia, Thailand, India |
| Wasu | Ethiopia, Saudi Arabia, Malaysia, Thailand, India |
| วาสุ | Thailand |
| Wasua | Kenya, Nigeria, Tanzania, Thailand |