Cognomen ג'האן (Jahanara 
, Jahan 
, Jehan ) , throughout the world, is a prevalent family name. The family name ג'האן is characteristic of Bangladesh, where it is a common surname, India, where it is quite a common surname, and Guernsey (explore the name in all countries). Not in comparison with a country's population, the name is most common in Southern Asia, particularly India, Bangladesh, and Pakistan. Very seldom, ג'האן is the forename as well as the last name.