Surname หาญวิชัย (Harnwichai 
, หาญวิชัย , Hanwichai ) , throughout the world, is a rare family name. The cognomen หาญวิชัย is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Also, หาญวิชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Harnwichai | Laos, Thailand |
| หาญวิชัย, Hanwichai | Thailand |