In the world, อุทัยวิทย์ (อุทัยวิทย์ 
) is a very rare predominantly boy's, but scarcely feminine first name. The given name อุทัยวิทย์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare predominantly male, but scarcely feminine name.
| VARIANT | COUNTRY |
|---|---|
| อุทัยวิทย์ | Thailand |