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Around the world, Sayomphon (สยมพร , Sayomphon
, สยมพล
) is a rare epicene given name. The forename Sayomphon is habitual in South-eastern Asia, particularly Thailand, where it is a rare gender-neutral name. Much less frequently, Sayomphon is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sayomphon, สยมพล, สยมพร | Thailand |
Arlai, Jantapan, Chantapan, Khampromma, and Chanthaphan