Family name 哈伊尔 (Chairul 
, 哈伊尔 ) , globally, is quite a common cognomen. The family name 哈伊尔 is habitual in South-eastern Asia, particularly Indonesia, where it is quite a rare surname, Malaysia, where it is a rare surname, and Singapore. Not in comparison with a country's population, the name is most common in Indonesia, Malaysia, and China. More frequently, 哈伊尔 is the forename as well as the last name.