Surname Uthaitus (Uthaitus 
) , across the world, is a very rare last name. The last name Uthaitus is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Uthaitus | Thailand |
Natcha, Kessara, Ketsara, Shotiros, and Nootchanad