Cognomen سوين (Suen 
, Swen 
, سوين 
) , in the world, is a prevalent surname. The surname سوين is habitual in Hong Kong, where it is a common surname, Bermuda, and India, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is the most numerous in India, the United States, and Hong Kong. Much less frequently, سوين is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suen | Taiwan, India, United Kingdom, United States, Hong Kong |
| Swen | Taiwan, India, United Kingdom, United States, Germany |
| سوين | Iran, Iraq, Saudi Arabia |
| Swain | China, Australia, India, United Kingdom, United States |