Cognomen ถิราภรณ์ (ถิราภรณ์ 
, Tirabhorn ) , across the world, is an extremely rare last name. The cognomen ถิราภรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, ถิราภรณ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tirabhorn, ถิราภรณ์ | Thailand |