Árni Þór Sigurðsson
 Árni Þór Sigurðsson (born 30 July 1960) in Reykjavik is a member of parliament of the Althing the Icelandic parliament since 2007. He is a member of the Left-Green Movement. He was Deputy Speaker of the Althing from 2009-2010 and again 2012-2013. Chairman of the Foreign Affairs Committee of the Althingi Feb. 2009 - April 2013. Chairman of the Parliamentary Delegation to EFTA/EEA 2009-2013. Co-Chairman of the Iceland-EU Joint Parliamentary Committee.