Throughout the world, Sundayi (Sundayi 
) is a very rare primarily girly, but scarcely male given name. The forename Sundayi is characteristic of Southern Asia, particularly India, where it is an extremely rare girly name. More frequently, Sundayi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sundayi | United Kingdom, Nigeria, South Africa, Zimbabwe, India |