In all the world, ฤทธิเบศร์ (ฤทธิเบศร์ 
) is a very rare principally male, but very seldom feminine forename. The forename ฤทธิเบศร์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare predominantly masculine, but scarcely girly name.
| VARIANT | COUNTRY |
|---|---|
| ฤทธิเบศร์ | Thailand |