Family name Sulain (Sulain 
) , throughout the world, is a very rare surname. The surname Sulain is characteristic of Malaysia, where it is a very rare surname, Spain, and Mexico, where it is an extremely rare surname. In absolute terms, this name is the most popular in Malaysia, India, and Spain. More prevalently, Sulain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sulain | Spain, India, Malaysia, United States, Colombia |