Family name ทินนิกร (ทินนิกร 
, Tinnikorn 
) , worldwide, is a very rare surname. The cognomen ทินนิกร is habitual in Thailand, where it is a very rare surname, Australia, and Russia, where it is an extremely rare surname. Likewise, ทินนิกร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ทินนิกร | Thailand |
| Tinnikorn | Australia, Russia, Thailand |