Family name Quejnay (Quejnay 
) , in all the world, is a rare surname. The last name Quejnay is habitual in Guatemala, where it is quite a rare surname, Mexico, where it is an extremely rare surname, and Spain. Not in comparison with a country's population, this name is the most popular in Guatemala, Mexico, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Quejnay | United States, Spain, Guatemala, Mexico |