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All over the world, Nilwan (นิลวรรณ , Nilwan
, นิลวรรณ์
) is quite a rare mostly girly, but uncommonly male forename. The given name Nilwan is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare mostly feminine, but uncommonly masculine name, and Indonesia, where it is a very rare boy's name. Much less frequently, Nilwan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| นิลวัลย์, นิลวรรณ์, นิลวรรณ | Thailand |
| Nilwan | Brazil, Malaysia, India, Indonesia, Thailand |