Aðalsteinsson
# 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
