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Family name Yainoi (Yainoi ) , globally, is a rare cognomen. The cognomen Yainoi is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
Sakda, Pawika, Witoon, Wiraya, Kitsana, Patitta, Jamnong, Saithong, Saowapak, Somphong, Kritsana, Donruethai, Tantaree, and Nattakan