Surname Kirkja (Kirk 
, Kirke , Kirka 
) , around the world, is a common family name. The last name Kirkja is habitual in Northern Europe, particularly Guernsey, where it is a common surname, Isle of Man, where it is quite a common surname, and Denmark (explore the name in all countries). Not in comparison with a country's population, it is commonest in the United States, the United Kingdom, and Australia. Also, Kirkja is the forename as well as the last name.