Þorsteinsson

Þorsteinsson is a surname of Icelandic origin, meaning son of Þorsteinn. In Icelandic names, the name is not strictly a surname, but a patronymic. The name may refer to:


 * Indriði G. Þorsteinsson (1926–2000), Icelandic novelist and short-story writer
 * Jón Dagur Þorsteinsson (born 1998), Icelandic footballer
 * Klængur Þorsteinsson (1102–1176), Icelandic Roman Catholic clergyman; bishop of Iceland 1152–76
 * Magnús Þorsteinsson (contemporary), Icelandic businessman; chairman and boardmember of several large businesses
 * Pétur Þorsteinsson (born 1955), Icelandic priest and neologist; leader of an Icelandic language movement
 * Skúli Þórsteinsson (fl. 11th century), Icelandic poet and warrior
 * Þorsteinn Þorsteinsson (1880–1979), Icelandic economist and Esperantist
 * Þorsteinn Þorsteinsson (athlete) (born 1947), Icelandic athlete who competed in the 800 metres
 * Þorsteinn Þorsteinsson (footballer) (born 1964), Icelandic footballer