Cognomen کلندر (Qalandar 
, قلندر 
, Calender 
) , worldwide, is quite a rare family name. The surname کلندر is characteristic of Afghanistan, where it is quite a rare surname, Iran, and Syria, where it is a rare surname. In absolute terms, it is the most numerous in Southern Asia, particularly Afghanistan, Iran, and Pakistan. More prevalently, کلندر is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Qalandar | Saudi Arabia, India, United States, Pakistan, Afghanistan |
| قلندر | Iran, Sudan, Iraq, Syria, Afghanistan |
| Calender | France, India, United Kingdom, South Africa, United States |