Karl Wenzel Ludwig von Paar, 4th Prince Paar, also Baron of Hartberg and Krottenstein, was an Austrian aristocrat.
- Occupation
- soldier, large estate owner, politician
- Position held
- Member of the House of Lords (Austria), Geheimrat
- Citizenship
- Cisleithania
- Born
- January 6, 1806
- Died
- January 17, 1881