Family name ฤทธิแก้ว (ฤทธิแก้ว, Ritikaew, Ridtikaew 
) , around the world, is a very rare surname. The surname ฤทธิแก้ว is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rittikaew, Ridtikaew | Thailand |