Surname קייטלין (Caitlin 
, Kaitlin , Caitlyn ) , throughout the world, is a rare family name. The family name קייטלין is habitual in Australia, where it is a rare surname, Armenia, and Singapore. Not in comparison with a country's population, it is commonest in Indonesia, the United States, and Australia. Predominantly, קייטלין is the forename as well as the last name.