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Surname Jansaard (Jansaard ) , in the world, is a rare cognomen. The cognomen Jansaard is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jansaard | Thailand |
Boy, Nikun, Samorn, Bundit, Chanapa, Supaporn, Krittika, Thamonwan, Preeyanuch, and Ratchaneewan