Family name Kongprachaya (Kongprachaya 
) , all around the world, is a very rare cognomen. The cognomen Kongprachaya is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kongprachaya | Thailand |
Rujira, Namthip, Yuthana, Chanasorn, and Sathianphong