Around the globe, Ratnalu (Ratnalu 
) is a common principally feminine, but scarcely boy's forename. The given name Ratnalu is habitual in Southern Asia, particularly India, where it is a rare principally female, but very seldom masculine name. Much less frequently, Ratnalu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ratnalu | India |