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Family name Ritruechai (Ritruechai ) , throughout the world, is a rare last name. The cognomen Ritruechai is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ritruechai | Thailand |
Viroj, Penpan, Athipat, Santipap, Supachai, Seripisut, Akephatara, Penpaktra, and Chonluedee