Surname Nagaiyan (Nagaiyan 
) , across the world, is a very rare family name. The last name Nagaiyan is habitual in Singapore, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and the United Kingdom. In absolute terms, it most frequently occurs in India, Singapore, and the United Kingdom. Also, Nagaiyan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nagaiyan | United Kingdom, India, Malaysia, Singapore |