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Globally, Halfdan (Halfdan ) is a rare masculine first name. The given name Halfdan is habitual in Northern Europe, particularly Norway, where it is quite a rare masculine name, and Denmark, where it is a rare male name. Very seldom, Halfdan is the last name as well as the forename.
Skar, Kierulf, Knudsen, Reschat, Rydland, Jonsson, Nielsen, Harring, Hopstock, Falkum-Hansen, Olafssøn, Andersen, Bechmann, Bondevik, Pedersen, Justesen, Isbrand-Hald, Mortensen, Brandtzæg, Rasmussen, Bjånesøy, Bau-Madsen, Schmidt, Hussey, Alve, Bryn, Koot, Ross, Wang, Muurholm, Saxer, Bunch, Kamoy, Kristjansson, Kamøy, Rifsdal, Mahler, Kajhøj, Kuhnle, Kjetland, Rydbeck, Larsen, Jensen, Hansen, Kruse, and Dall'Agnol