Cognomen בתאם (Betham 
, בתאם 
) , all around the world, is quite a rare last name. The family name בתאם is characteristic of New Zealand, where it is quite a rare surname, Australia, where it is a rare surname, and Ireland. Measured by absolute frequency, this name is the most popular in India, the United States, and Australia. Much less frequently, בתאם is the forename as well as the last name.