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Family name Wankeao (Wankeao ) , in all the world, is a very rare cognomen. The cognomen Wankeao is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wankeao | Thailand |
Chumlong, Pechpilai, Thiranan, Natchanon, and Ploychompoo