Around the globe, จิรนันทร์ (จิรนันทร์ 
) is a very rare dominantly girly, but uncommonly boy's given name. The first name จิรนันทร์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare largely feminine, but infrequently male name.
| VARIANT | COUNTRY |
|---|---|
| จิรนันทร์ | Thailand |