Family name Valey (Valley 
, Valey 
, Валей 
) , in the entire world, is a common last name. The family name Valey is characteristic of Guatemala, where it is quite a rare surname, Latvia, and Canada. Measured by absolute frequency, this name is the most popular in the United States, Guatemala, and the United Kingdom. Very seldom, Valey is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Valley | Canada, France, United Kingdom, United States, Democratic Republic of the Congo |
| Valey | Canada, United Kingdom, United States, Guatemala, Democratic Republic of the Congo |
| Валей | Kazakhstan, Russia, Ukraine, Kyrgyzstan |
| Vallis | Canada, France, United Kingdom, India, United States |