Cognomen خانوم (Khanoom 
, Chanum 
, Khnum 
) , all around the world, is quite a rare last name. The last name خانوم is characteristic of Syria, where it is quite a rare surname, Bangladesh, where it is a rare surname, and United Arab Emirates. Measured by absolute frequency, this name is the most popular in Bangladesh, Iran, and Syria. Very seldom, خانوم is the forename as well as the last name.