Cognomen แสนรุ่งโรจน์ (แสนรุ่งโรจน์, Saenrungrot 
) , all around the world, is an extremely rare last name. The cognomen แสนรุ่งโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Saenrungrot | Thailand |