Globally, อรณุช (อรณุช 
) is a very rare mostly female, but seldom boy's first name. The forename อรณุช is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare dominantly female, but seldom masculine name.
| VARIANT | COUNTRY |
|---|---|
| อรณุช | Thailand |
บาดกลาง, บุพพไชย, สงวนงาม, บัณฑิตอาภรณ์, and แสงทับทิม