In the entire world, วัยกรณ์ (วัยกรณ์ 
) is a very rare masculine first name. The first name วัยกรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare male name.
| VARIANT | COUNTRY |
|---|---|
| วัยกรณ์ | Thailand |
ชัยโย, and ศะศิสุวรรณ