Around the world, ואין (Wain 
, ואין 
) is a rare predominantly boy's, but very infrequently girly forename. The given name ואין is habitual in Australia, where it is a very rare epicene name, the United States, where it is a very rare masculine name, and the United Kingdom, where it is a very rare primarily boy's, but very infrequently female name. Not in comparison with a country's population, it is the most numerous in the United States, Indonesia, and the United Kingdom. More frequently, ואין is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Wain | Myanmar, Australia, Indonesia, United States, United Kingdom |
| ואין | Israel |