Surname Udayakanthi (Udayakanthi 
) , worldwide, is a rare last name. The cognomen Udayakanthi is habitual in Southern Asia, particularly Sri Lanka, where it is a rare surname. Much less frequently, Udayakanthi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Udayakanthi | United States, Sri Lanka, India |