Surname สิงหทัย (สิงหทัย 
) , all around the world, is a very rare cognomen. The family name สิงหทัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, สิงหทัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สิงหทัย | Thailand |