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Last name Wanchai (วันชัย , Wanchai , วรรณชัย ) , all over the world, is quite a rare cognomen. The cognomen Wanchai is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname, Myanmar, where it is a rare surname, and Singapore. Measured by absolute frequency, the name is most common in Thailand, Myanmar, and China. Much more prevalently, Wanchai is the forename as well as the last name.
Metta, Kunawaradisai, Pangpoonsab, Panyaboon, Limsiriwong, Janesiripanich, Muangsrinoon, Suwannakan, Sritanaviriyangkul, Charoenpol, Chaisamorn, Boonsamran, Kongprapan, Parinyasiri, Prakaikeat, Jantaradaval, Haruthaisuksan, Wisuttisawad, Aphithanamontree, Chantapachanee, Prakobkhong, Patcharasakdathorn, Suphakorn, Shomsheyrak, Meesoonthorn, Maneetham, Sriha, Raksa, Aenloi, Janhom, Emocha, Surakul, Boorapa, Prutpot, Pilalai, Guaykam, Jiranantaraporn, Lerdawasadatrakul, Janporn, Nunsunee, Ongvongsakul, Maneewan, Sukaseam, Chuthong, Prakopkong, Jarumust, Tunsukkosol, Intrakao, Luelarp, and Chirametheewatthanak