Surname Gayandi (Gayandi 
) , across the world, is an extremely rare cognomen. The family name Gayandi is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. Predominantly, Gayandi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gayandi | India, Sri Lanka |
Sumardi, Rambukwella, and Ekanayake