Family name Suvachan (Suvachan 
) , around the world, is a very rare cognomen. The family name Suvachan is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Suvachan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suvachan | India, Thailand |