Cognomen สนธิไชย (สนธิไชย 
, Sontijai ) , around the globe, is a rare last name. The last name สนธิไชย is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| วรรณรท สนธิไชย Thai film and television actress and pop singer, TH (b. 1989) |
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