Cognomen באם (Bam 
, באם 
) , in the entire world, is a common last name. The last name באם is habitual in Nepal, where it is quite a common surname, South Africa, where it is quite a rare surname, and Namibia. Measured by absolute frequency, it is commonest in Nepal, India, and South Africa. Likewise, באם is the forename as well as the last name.