Karl Barthel (disambiguation)
Karl Barthel is the name of the following people:
- Karl Barthel (literary historian) (1817-1853), German literary historian
- Karl Barthel (1907–1974), German politician (KPD / SED)
- Karl Barthel (composer) (1919–1995), German brass music composer
- Karl-Heinrich Barthel (1905 – after 1963), German physician and politician (NSDAP, NDPD)
- Karl Wolfgang Barthel (1929–2018), German writer and journalist