Surname ฤกษดายุทธ์ (ฤกษดายุทธ์ 
) , throughout the world, is an extremely rare cognomen. The cognomen ฤกษดายุทธ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ฤกษดายุทธ์ | Thailand |