Globally, รัตนเจริญชัย (Rattanacharoenchai 
, รัตนเจริญชัย , Rattanaroengchai 
) is an extremely rare unknown gender first name. Much more prevalently, รัตนเจริญชัย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ruttanacharoenchai, Rattanacharoenchai, รัตนเจริญชัย | Thailand |
| Rattanaroengchai | United States, Thailand |