Surname הארלו (Harlow 
, הארלו 
) , around the world, is a common cognomen. The last name הארלו is habitual in Saint Lucia, where it is quite a common surname, Reunion, and the United States, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and Canada. Much less frequently, הארלו is the forename as well as the last name.