Aðalsteinsson

Aðalsteinsson is an Icelandic patronymic surname, literally meaning "son of Aðalsteinn". Notable people with the surname include:


 * Aðalsteinn Aðalsteinsson (born 1962), Icelandic footballer
 * Arnór Sveinn Aðalsteinsson (born 1986), Icelandic footballer
 * Baldur Ingimar Aðalsteinsson (born 1980), Icelandic footballer
 * Jón Hnefill Aðalsteinsson (1927–2010), Icelandic scholar and folklorist
 * Þorbergur Aðalsteinsson (born 1956), Icelandic handball player