Cognomen วิตร์ (Wi 
, วิตร์ ) , in the entire world, is a common last name. The cognomen วิตร์ is characteristic of Myanmar, where it is quite a rare surname, Malaysia, and Algeria. Measured by absolute frequency, the name is most common in South-eastern Asia, particularly Indonesia, Myanmar, and Malaysia. Also, วิตร์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wi | Myanmar, Thailand, Indonesia, Malaysia, Algeria |
| วิตร์ | Thailand |