Surname สวัสดีจันทร์ (สวัสดีจันทร์ 
, Sawadeechan , Sawadjan 
) , throughout the world, is a very rare family name. The last name สวัสดีจันทร์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and Philippines.
| VARIANT | COUNTRY |
|---|---|
| สวัสดีจันทร์, Sahwatdeejan, Sawadeechan | Thailand |
| Sawadjan | Malaysia, Thailand, Philippines |