Cognomen Khankhan (Khankhan 
, Khankkhan) , worldwide, is quite a rare surname. The cognomen Khankhan is habitual in Western Asia, particularly Saudi Arabia, where it is quite a rare surname, United Arab Emirates, and Oman. In absolute terms, it is commonest in Saudi Arabia, India, and United Arab Emirates. Also, Khankhan is the forename as well as the last name.