Surname Хаыа (Haya 
, Khaya 
, Хаыа 
) , around the world, is a common cognomen. The surname Хаыа is habitual in Qatar, where it is quite a rare surname, Morocco, and Kuwait. Measured by absolute frequency, it is the most numerous in Pakistan, India, and Indonesia. More prevalently, Хаыа is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Haya | Japan, Pakistan, Egypt, Syria, Saudi Arabia |
| Khaya | Morocco, Pakistan, Indonesia, South Africa, India |
| Хаыа | Russia |
| Xaya | Laos, France, South Africa, United States, India |