Worldwide, เพชรนิยม (เพชรนิยม 
) is a very rare unisex forename. The first name เพชรนิยม is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare gender-neutral name. Much less frequently, เพชรนิยม is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| เพชรนิยม | Thailand |