Cognomen Pearu (Pearu 
) , globally, is a rare last name. The cognomen Pearu is characteristic of Bangladesh, where it is a rare surname, India, where it is an extremely rare surname, and the United States. Much less frequently, Pearu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pearu | Estonia, Bangladesh, India, United States, United Kingdom |