Surname วิชาชาญชัย (วิชาชาญชัย 
, Vichacharnchai , Vichachanchai 
) , all around the world, is a very rare last name. The last name วิชาชาญชัย is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| วิชาชาญชัย, Vichacharnchai | Thailand |
| Vichachanchai | Thailand, United States |