Family name Srain (Srain 
) , across the world, is a very rare cognomen. The cognomen Srain is habitual in Chile, where it is a rare surname, Malaysia, where it is an extremely rare surname, and the United Kingdom. In absolute terms, it most frequently occurs in Chile, China, and the United States. Much less frequently, Srain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Srain | China, United States, United Kingdom, India, Chile |