Cognomen กุมาร (Child 
, กุมาร 
, Kumharan 
) , all around the world, is a common last name. The cognomen กุมาร is habitual in Isle of Man, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and Jamaica. In absolute terms, the name is most common in the United States, the United Kingdom, and Indonesia. Likewise, กุมาร is the forename as well as the last name.