Schleim-Keim or Schleimkeim is a German punk band from the city of Erfurt-Stotternheim in East Germany founded in 1980. Until German reunification, they played primarily in East German churches, and belonged to the musical underground of the German Democratic Republic (GDR). They have been hailed as one of the most important and influential punk bands of the former East Germany. The band was admired by East German youth who were dissatisfied with the communist state.

Schleim-Keim released the first punk record by a band in East Germany, in collaboration with the band Zwitschermaschine. After German Reunification, Schleim-Keim released two albums, as well as five EPs on Höhne Records, which is known for releasing albums from bands like Müllstation and Rasta Knast. Schleim-Keim's songs were included on all three volumes of the famous East German series of punk samplers Sicher gibt es bessere Zeiten, doch diese war die unsere (English translation: "Surely there are better times, but these were ours"). They were featured on the Weird System sampler Punk Rock BRD, the Amiga Records' sampler Die 100 Besten Ost-Songs (English translation: "The 100 best East Songs"), and Major Label/Edition Iron Curtain Radio's 2020 sampler Too Much Future – Punk Rock GDR 1980-1989. Schleim-Keim has also been the subject of an independent biography, and is discussed in several books about German punk.