Worldwide, รัชนันทน์ (รัชนันทน์ 
) is a very rare largely boy's, but infrequently girly first name. The forename รัชนันทน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare mostly boy's, but seldom female name.
| VARIANT | COUNTRY |
|---|---|
| รัชนันทน์ | Thailand |