Surname Kirthini (Kirthini 
) , across the world, is an extremely rare family name. Much more prevalently, Kirthini is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kirthini | India, United States, Malaysia |
Devi, Kumar, Nagesh, Ramanaidu, Ravindran, Arunasalem, Paramasivan, and Muralidharan