Surname วิถี (Trai 
, วิถี , Withi 
) , all around the world, is quite a rare family name. The surname วิถี is characteristic of Macao, where it is quite a rare surname, Thailand, and Malaysia, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Thailand, Algeria, and Malaysia. Likewise, วิถี is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trai | Malaysia, Thailand, Algeria, United States, Morocco |
| วิถี | Thailand |
| Withi | Brazil, South Africa, Thailand |
| Traison | Israel, Thailand, India, South Africa, United States |
Pathitar, Pathitya, Pathiwa, Pathmaneepesh, Pathombure, Pathomying, Traimit, Traisonthi, Traivit, Vithi, Waysiya, Waythit, Wayuree, and Witii
| วิถี พานิชพันธ์ TH (b. 1946) |
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| ธรรมนูญ วิถี Thai politician, TH (b. 1961) |
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