Last name Lapay (Lapay 
, Paille 
, Лапай 
) , in the entire world, is quite a common cognomen. The cognomen Lapay is habitual in France, where it is quite a rare surname, Philippines, and Morocco. Very seldom, Lapay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lapay | India, Morocco, France, Philippines, Canada |
| Paille | India, United States, France, Democratic Republic of the Congo, Canada |
| Лапай | Ukraine, Russia, Belarus, Kazakhstan |
| Лапаы | Russia |