Family name Хэй (Hay 
, Hej 
, Haigh 
) , throughout the world, is a common last name. The family name Хэй is characteristic of Isle of Man, where it is quite a common surname, New Zealand, and Australia (explore the name in all countries). In absolute terms, it is the most numerous in the United States, the United Kingdom, and Pakistan. Also, Хэй is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hay | Australia, Myanmar, Pakistan, United Kingdom, United States |
| Hej | Morocco, France, United Kingdom, United States, Indonesia |
| Haigh | Australia, Canada, France, United Kingdom, United States |
| Хэй | Kazakhstan, Russia |