Cognomen ดีเดิม (ดีเดิม 
) , worldwide, is a rare surname. The last name ดีเดิม is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ดีเดิม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ดีเดิม | Thailand |