Guðni Thorlacius Jóhannesson (Icelandic pronunciation: ?['k?ðn? 't??rla?si?j?s 'jou?han??s?s?n];
born 26 June 1968) is an Icelandic politician serving as the 6th and current president of Iceland.
He took office in 2016 after receiving the largest number of votes in the 2016 election, 71,356 (39.1%).
A historian, he was a docent at the University of Iceland until his election.
His field of research is modern Icelandic history, and he has published a number of works on the Cod Wars, the 2008–2011 Icelandic financial crisis and the Icelandic presidency, among other topics.