Cognomen ปฐมอรรฆย์กุล (ปฐมอรรฆย์กุล 
) , in all the world, is a very rare family name. The last name ปฐมอรรฆย์กุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปฐมอรรฆย์กุล | Thailand |
| กัมพล ปฐมอรรฆย์กุล Thai footballer, TH (b. 1992) |
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