Johannes Hassebroek (11 July 1910, in Halle, Saxony-Anhalt – 17 April 1977, in Westerstede) was a German SS commander during the Nazi era. He served as a commandant of the Gross-Rosen concentration camp and its sub-camps from October 1943 until the end of the war. Hassebroek was tried for his crimes by the British occupational authorities, convicted to life imprisonment, and released in 1954. The later prosecution by the West German authorities proved unsuccessful.