Cognomen ธนวชิราธร (ธนวชิราธร 
) , in the entire world, is an extremely rare family name. The family name ธนวชิราธร is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธนวชิราธร | Thailand |
มนูญศักดิ์, and วัชราภรณ์