Family name Kristrún (Kristrún 
) , in the world, is an extremely rare surname. Predominantly, Kristrún is the forename as well as the last name.
Vala, Einarsdóttir, Friðriksdóttir, Þórðardóttir, Sigurfinnsdóttir, Kjartansdóttir, Pétursdóttir, Gunnarsdóttir, Jóhannsdóttir, Guðmundsdóttir, Hallgrímsdóttir, Sigurðardóttir, Sigurjónsdóttir, Sigurgeirsdóttir, Steinarsdóttir, Kristinsdóttir, Kristjánsdóttir, Júlíusdóttir, Gísladóttir, Grétarsdóttir, Rúnarsdóttir, Ósk, Hansen, Skúladóttir, Hauksdóttir, Helgadóttir, Sveinsdóttir, Antonsdóttir, Agnarsdóttir, Birgisdóttir, Karlsdóttir, Guðnadóttir, Heimisdóttir, Viggósdóttir, Árnadóttir, Ólafsdóttir, Steinþórsdóttir, Björnsdóttir, Kristófersdóttir, and Valdimarsdóttir