Surname Purnam (Purnam 
) , globally, is a rare family name. The family name Purnam is characteristic of Indonesia, where it is a very rare surname, India, and Malaysia. Not in comparison with a country's population, this name is the most popular in India, Indonesia, and Pakistan. More prevalently, Purnam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Purnam | Indonesia, India, Pakistan, Malaysia, Nigeria |