All over the world, Daewan (Daewan 
) is an extremely rare boy's forename. More frequently, Daewan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Daewan | Philippines, India, United States, Thailand, China |
| daewan han Ph.D. Seoul National University 2007 |
|
Warin, Anusak, Suchada, Jehabdullah, Wiphawan, Chujiraphun, Pattarapan, and Pattaraporn