Last name Bauan (Bauan 
) , around the globe, is a rare family name. The surname Bauan is characteristic of Philippines, where it is a rare surname, Italy, where it is an extremely rare surname, and Canada. Not in comparison with a country's population, it is commonest in Philippines, India, and Italy. More frequently, Bauan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bauan | Italy, Canada, Philippines, United States, India |