Family name خوست (خوست 
, Khost 
, Khowst 
) , worldwide, is quite a rare cognomen. The last name خوست is characteristic of the Democratic Republic of the Congo, where it is a rare surname, Afghanistan, and United Arab Emirates. In absolute terms, this name is the most popular in the Democratic Republic of the Congo, Iran, and Afghanistan. Much less frequently, خوست is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| خوست | Saudi Arabia, Iran |
| Khost | Jordan, Democratic Republic of the Congo, Afghanistan, Saudi Arabia, United Arab Emirates |
| Khowst | Israel |
| عبد الحميد خوست EG (b. 1886) |
|
|
| ناديا خوست SY (b. 1935) |
|