Surname Lahaj (Lahaj 
, Лахай 
) , in the entire world, is a rare family name. The cognomen Lahaj is characteristic of Ukraine, where it is a rare surname, Belarus, and Morocco. In absolute terms, it most frequently occurs in Ukraine, Morocco, and Russia. Likewise, Lahaj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lahaj | Morocco, Germany, United States, Algeria, India |
| Лахай | Belarus, Russia, Kazakhstan, Ukraine |
|
ramë lahaj operatic tenor, XK (b. 1983) |
|