Across the world, ยิ่งถาวร (ยิ่งถาวร, Yingtavorn 
, Yingthavorn 
) is an extremely rare unknown gender forename. Much more prevalently, ยิ่งถาวร is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Yingtavorn | United States |
| Yingtaworn, Yingthavorn | Thailand |