Þorsteinn Bjarnason (born 1957), Icelandic former professional footballer (goalkeeper)
Hannes Þorsteinn Sigurðsson (born 10 April 1983 in Reykjavík, Iceland) is an Icelandic football player.
Þorsteinn graduated from the Menntaskólinn í Reykjavík gymnasium in 1961 and subsequently received a grant to study at Harvard University.