Peter Tschentscher (born 20 January 1966) is a German politician of the Social Democratic Party (SPD). Since 28 March 2018, he is the First Mayor of Hamburg and head of the new state government. Since 2008 he has been a member of the Hamburger Bürgerschaft, the state parliament of Hamburg. From 2011 until 2018, he served as State Minister of Finance of the city in the Senates Scholz I and II.