Around the world, รนชัย (รนชัย 
) is a very rare principally male, but very infrequently feminine first name. The forename รนชัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare principally boy's, but scarcely girly name.
| VARIANT | COUNTRY |
|---|---|
| รนชัย | Thailand |
โคมทอง, สารรัตน์, and เกียรติกวานกุล