Surname 博温 (博温 
, Borwein 
) , around the globe, is a very rare family name. The last name 博温 is characteristic of Hong Kong, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. In absolute terms, the name is most common in Hong Kong, China, and Canada. Also, 博温 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 博温 | China |
| Borwein | Hong Kong, Canada, New Zealand, Australia |