Last name Байль (Bail 
, Bayl 
, Байль 
) , all around the world, is quite a common family name. The family name Байль is characteristic of Guatemala, where it is quite a rare surname, France, and Australia. Measured by absolute frequency, it most frequently occurs in France, India, and Germany. Very seldom, Байль is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bail | Germany, Guatemala, India, France, Brazil |
| Bayl | Germany, United States, India, France, Brazil |
| Байль | Kazakhstan, Russia, Ukraine |