Klaus Werner Iohannis (Romanian: [ˈkla.us joˈhanis]; German: [ˈkʰlaʊ̯s joˈhanɪs]; also spelled Johannis; born 13 June 1959) is a Romanian politician, physicist and former teacher who has been serving as the president of Romania since 2014. Ideologically a conservative, he became leader of the National Liberal Party (PNL) in 2014, after serving as leader of the Democratic Forum of Germans in Romania (FDGR/DFDR) between 2002 and 2013. Prior entering politics, Iohannis was a physics teacher.