Worldwide, Walwin (Walwin 
) is a very rare male forename. The given name Walwin is characteristic of Northern America, particularly the United States, where it is an extremely rare male name. Also, Walwin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Walwin | United Kingdom, Nicaragua, United States, India, Brazil |
| walwin de silva Sri Lankan civil servant, LK (b. 1905) |
|