Surname วิศาสน์ (วิศาสน์ 
) , across the world, is an extremely rare cognomen. The cognomen วิศาสน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, วิศาสน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วิศาสน์ | Thailand |