Klaus Werner Iohannis () (born 13 June 1959, Sibiu, Romania) is a Romanian politician, since December 2014 he is the President of Romania. Since 2000 he has served as mayor of Sibiu. He was re-elected in 2004, 2008 and 2012. In February of 2013 he joined the PNL. He was immediately made vice-president that party. On 28 June 2014 he was made president of PNL (after Crin Antonescu quit).