Johannes Ringk, or Ringck (26 June 1717 – 24 August 1778), was a German composer and organist. He was born in Frankenhain, in present-day Thuringia, and studied organ with Johann Peter Kellner in Gräfenroda and Gottfried Heinrich Stölzel in Gotha. From 1740 he was a music teacher in Berlin, and in 1754 he was appointed organist of the Marienkirche, where he remained until his death. Contemporaries held a high opinion of his organ playing and ability at fugal extemporisation.