Surname Stitpittayayut (Stitpittayayut 
) , worldwide, is a very rare family name. The surname Stitpittayayut is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Stitpittayayut | Thailand |
Prot, Pimchamai, and Prapassorn