Family name วิธรรม (วิธรรม 
) , across the world, is an extremely rare surname. The family name วิธรรม is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, วิธรรม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วิธรรม | Thailand |