Surname Саил (Sail 
, Саил 
) , across the world, is a common cognomen. The surname Саил is habitual in Algeria, where it is quite a rare surname, Morocco, and Oman. Not in comparison with a country's population, it most frequently occurs in India, Algeria, and Indonesia. Also, Саил is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sail | Indonesia, Morocco, Algeria, India, Pakistan |
| Саил | Uzbekistan, Russia, Kazakhstan |