Christian Berentz, also Christian Bernetz or Bernesis (* 1658 in Hamburg; 22. March 1722 in Rome), was a German painter in the time of the High Baroque.
In Hamburg Christian Berentz learned his craft from 1667 to 1673 with Hermann Kamphusen ( 1698) and then until 1677 with Georg Hinz. He then left his hometown and stayed in the Southern Netherlands until 1679. On the way to Italy Berentz travelled Flanders and Germany. He spent the rest of 1679 in Venice and reached Rome in 1680. Berentz worked in the Tiber metropolis until his death - for example, according to Franz Werner Tamms, among others, in Carlo Maratta's studio. Pietro Navarra, present in Rome until 1714, was one of his students.
Berentz created his still lifes in succession to Pieter Claesz, Willem Kalf, Pieter Gerritsz van Roestraeten and Francesco Maltese. He also influenced Bohemia's Maximilian Pfeiler (1656-1746).