Globally, Nallaiyan (Nallaiyan 
) is a very rare masculine given name. The forename Nallaiyan is characteristic of Southern Asia, particularly India, where it is an extremely rare boy's name. Also, Nallaiyan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nallaiyan | United Kingdom, United States, India, Malaysia |