Family name มฤทธิ์ (Mrit 
, มฤทธิ์ 
) , all over the world, is a rare surname. The surname มฤทธิ์ is characteristic of Morocco, where it is a rare surname, Thailand, where it is a very rare surname, and France, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Morocco, India, and China. Likewise, มฤทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mrit | Morocco, France, India, Democratic Republic of the Congo, China |
| มฤทธิ์ | Thailand |