Family name 海加 (Helga 
, 海加 
) , around the globe, is quite a common last name. The cognomen 海加 is habitual in Iceland, where it is quite a common surname, Poland, where it is quite a rare surname, and Brunei. In absolute terms, the name is most common in Poland, Spain, and Indonesia. Predominantly, 海加 is the forename as well as the last name.