Surname Tirachaya (Tirachaya 
) , all over the world, is an extremely rare family name. Predominantly, Tirachaya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tirachaya | Thailand |
Yanoi, Jeedokkaew, Traseub, Wattalo, Maneesiri, and Pinthongklang