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Family name Thordur (Thordur ) , worldwide, is an extremely rare cognomen. Predominantly, Thordur is the forename as well as the last name.
Egholm, Olafsson, Oskarsson, Magnusson, Sigfusson, Lorenzini, Hermannsson, Hilmarsson, Fridgeirsson, Saemundsson, Sigurdsson, Kristinsson, Ragnarsson, Gunnarsson, Johannsson, Thorarinsson, Thordarson, Thorvaldsson, Thorkelsson, Haraldsson, Gudmundsson, Valdimarsson, Vidarsson, Thorsteinsson, Einarsson, Gislason, Arnason, Arnarson, Bergsson, Bogason, Palsson, Raguels, Jonsson, Thorsson, Torfason, Eiriksson, Helgason, Ingason, Sturluson, Sverrisson, Agustsson, Bjornsson, Bjarnason, Karlsson, Reynisson, Runolfsson, Gissurarson, Jonasson, and Adalsteinsson