Þorsteinn is an Old Norse and Icelandic masculine given name. Notable people with the name include: Þorsteinn Bachmann (born 1965), Icelandic actor Þorsteinn Bjarnason (born 1957), Icelandic former professional footballer (goalkeeper) Þorsteinn Eiríksson, the youngest son of Erik the Red Þorsteinn Erlingsson (1858–1914), Icelandic poet Þorsteinn frá Hamri (born 1938), Icelandic writer Þorsteinn Gunnarsson (born 1940), Icelandic actor and architect Þorsteinn Gylfason (1942–2005), Icelandic philosopher, translator, musician, poet, art enthusiast and intellectual Þorsteinn J (full name Þorsteinn Jens Vilhjálmsson), an Icelandic television personality Þorsteinn Pálsson (born 1947), Prime Minister of Iceland for the Independence Party from 1987 to 1988 Masculine given names Icelandic masculine given names