Cognomen Lertchaipat (Lertchaipat 
) , all around the world, is a very rare last name. The cognomen Lertchaipat is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lertchaipat | Thailand |
Oraphin, Jiraporn, Jiraphorn, and Latthaphon