Ralf Stegner is a German politician of the Social Democratic Party. He was the leader of the SPD in Schleswig-Holstein from 2007 to 2019. He is currently the Leader of the Opposition in Schleswig-Holstein since June 2017, an office he also held from July 2009 to June 2012. He is considered a member of the SPD's left wing.
From 1996 to 2005, Stegner served in various roles in the state government of Minister-PresidentHeide Simonis. He was State Secretary for Labor, Social Affairs and Health from 1996 to 1998 before serving as State Secretary for Education, Research and Cultural Affairs from 1998 to 2003. Between 2003 and until Simonis’ resignation in 2005, he was the State Minister of Finance. Stegner has been a member of the Landtag of Schleswig-Holstein since the 2005 state elections. After Simonis's attempt to form a new one-seat majority red-green government supported by a regional party had failed because throughout four secret ballots one representative had not voted for her, she withdrew from politics and Stegner practically took over from her and became Deputy Minister-President and State Minister for Home Affairs in the subsequent CDU-SPD grand coalition led by Minister-President Peter Harry Carstensen. Although Stegner had harshly critisised the unknown person who had refused to vote for Simonis, he was initially considered to have been the so-called "Heide murderer" by some media, which is generally regarded as refuted because Simonis suspected another person and had planned to pass her office on to Stegner after two years. In 2007 he formally succeeded her as he was elected chairman of the Schleswig-Holstein SPD. When the SPD ministers left the coalition government, which had been in constant dispute over several issues, in 2008, Stegner became SPD candidate for Minister-President in the early 2009 elections. Following their electoral defeat, he became chairman of the party's parliamentary group and thereby leader of the opposition against the Carstensen government. He was unsuccessful in his attempt to become the party's candidate again for the 2012 elections; Mayor of KielTorsten Albig was chosen instead and subsequently elected to the office. Stegner chose not to return to a ministerial office in Albig's government and kept the offices of party and parliamentary chairman of the SPD. After Albig's defeat in the 2017 elections, Stegner became leader of the opposition for the second time. In 2019 he was succeeded by Serpil Midyatli in his state party office but remained parliamentary and opposition leader.