Stahnke is a German surname. Notable people with the surname include:
Angela Stahnke, German speedskater Günter Stahnke, German film director Herbert Stahnke, American biologist Manfred Stahnke, German composer and musicologist Susan Stahnke, German TV presenter Wayne Stahnke, American inventor of electro-mechanical reproducing pianos manufactured by Bösendorfer and Steinway & Sons