Cognomen Bitwin (Bitwin 
) , globally, is a rare last name. The last name Bitwin is characteristic of Algeria, where it is a rare surname, Morocco, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Bitwin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bitwin | Philippines, Algeria, Morocco, India |