Globally, เร่ง (Reng 
, เร่ง) is a rare unisex forename. The forename เร่ง is habitual in Nigeria, where it is a rare epicene name, Saudi Arabia, where it is a very rare masculine name, and Indonesia. Measured by absolute frequency, the name is most common in Nigeria, Indonesia, and India. Also, เร่ง is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Reng | Indonesia, Taiwan, Germany, Malaysia, Zambia |