Cognomen Chilwa (Chilwa 
) , globally, is a rare surname. The family name Chilwa is habitual in Tanzania, where it is a rare surname, South Africa, where it is a very rare surname, and Indonesia. Much less frequently, Chilwa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chilwa | India, Indonesia, South Africa, Tanzania |