Family name حجاي (Hagai 
, Haggai 
, Aggeo 
) , across the world, is quite a common last name. The cognomen حجاي is habitual in Israel, where it is quite a common surname, Namibia, where it is quite a rare surname, and Kenya. Not in comparison with a country's population, this name is the most popular in Israel, Nigeria, and Kenya. Also, حجاي is the forename as well as the last name.