Surname วิหาญ (วิหาญ 
) , in all the world, is an extremely rare cognomen. The last name วิหาญ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more frequently, วิหาญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วิหาญ | Thailand |