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All around the world, Saiwan (Saiwan
, สายวัน
, สายวรรณ
) is quite a rare predominantly boy's, but very seldom feminine first name. The given name Saiwan is characteristic of Iraq, where it is quite a rare predominantly boy's, but very seldom feminine name, Thailand, where it is a very rare epicene name, and Iran, where it is a very rare masculine name. Measured by absolute frequency, this name is the most popular in Iraq, Thailand, and India. Also, Saiwan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Saiwan | Iraq, Myanmar, India, Pakistan, Thailand |
| สายวรรณ, สายวัน | Thailand |