Family name Chirayuth (Chirayuth 
) , in all the world, is an extremely rare surname. Much more prevalently, Chirayuth is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chirayuth | United States, Thailand |
Sit, Lekleng, Samrith, Auamkeaw, Rakleng, Khunchon, Chankolravee, Chootanon, Sanguansin, and Tantitrakulchaiya