Worldwide, ศิมากรณ์ (ศิมากรณ์ 
) is a very rare dominantly female, but uncommonly boy's first name. The given name ศิมากรณ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare dominantly girly, but infrequently masculine name.
| VARIANT | COUNTRY |
|---|---|
| ศิมากรณ์ | Thailand |