Surname بانيا (Bania 
, بانيا 
, Bagnaia 
) , all around the world, is a common cognomen. The family name بانيا is characteristic of Poland, where it is quite a rare surname, Greece, and India. Not in comparison with a country's population, it is the most numerous in India, Poland, and Philippines. Much less frequently, بانيا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bania | India, Pakistan, Philippines, Democratic Republic of the Congo, Poland |
| بانيا | Iraq |
| Bagnaia | Italy, Switzerland |