Family name ฐิติรัตนศาสน์ (ฐิติรัตนศาสน์ 
) , across the world, is a very rare cognomen. The surname ฐิติรัตนศาสน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ฐิติรัตนศาสน์ | Thailand |