Surname Sigurjón (Sigurjón 
) , around the globe, is an extremely rare last name. Much more prevalently, Sigurjón is the forename as well as the last name.
Árni, Egilsson, Hákonarson, Ingólfsson, Ólafsson, Sigurðsson, Aðalsteinsson, Guðmundsson, Grétarsson, Jóhannesson, Hafsteinsson, Hjartarson, Vilbergsson, Friðriksson, Friðjónsson, Fjeldsted, Sigurjónsson, Sigurgeirsson, Björgvinsson, Kristinsson, Gunnarsson, Þórðarson, Einarsson, Jóhannsson, Gíslason, Guðbergsson, Ólason, Arason, Gylfason, Lárusson, Viðar, Smárason, Pálsson, Jónsson, Harðarson, Helgason, Kristjánsson, Hreinsson, Þórsson, Magnússon, Sveinsson, Svavarsson, Birgisson, Björnsson, Bjarnason, Kárason, Runólfsson, Rúnarsson, Árnason, and Valdimarsson