Simone Lange (born 24 October 1976) is a German politician of the Social Democratic Party (SPD) who served as Mayor of Flensburg from 2017 to 2023.

After completing a polytechnic degree in 1998 (Dipl.-Verwaltungsfachwirtin (police division)), she was employed at the criminal investigation department in Flensburg from 1999 until 2012.

[1][2] In the SPD faction of the Schleswig-Holstein Landtag, she was spokesperson for police policy and equality.

[3] On 28 July 2015, it was announced that Lange would run against incumbent Simon Faber of the South Schleswig Voters' Association for the 2016 Flensburg mayor elections.

[7][8] In the 2019 SPD leadership election, she announced her intention to run for the position again, this time together with Alexander Ahrens;[9] shortly after, both withdrew their candidacies and instead endorsed Norbert Walter-Borjans and Saskia Esken.