Family name Youngapaikunrak (Youngapaikunrak 
) , around the world, is a very rare last name. The cognomen Youngapaikunrak is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Youngapaikunrak | Thailand |
Punchita, Teerawat, Narindhorn, Thanyarach, and Nalinthorn