Family name ขจาย (Khachai 
, ขจาย 
) , all around the world, is a rare last name. The surname ขจาย is characteristic of Algeria, where it is a rare surname, Morocco, and France, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Algeria, Morocco, and India. Very seldom, ขจาย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khachai | Russia, Morocco, Algeria, India, France |
| ขจาย | Thailand |