Cognomen ขันแก้ว (Khankaew 
, Khankaeo 
, ขันแก้ว) , in the world, is quite a rare family name. The cognomen ขันแก้ว is habitual in Thailand, where it is quite a rare surname, Belgium, where it is a rare surname, and Singapore, where it is a very rare surname. Much less frequently, ขันแก้ว is the forename as well as the last name.