| Constantine Mavrocordatos | |
|---|---|
| Prince of Wallachia and Moldavia | |
 Mavrocordatos depicted by Georg Friedrich Schmidt, 1763 | |
| Prince of Wallachia (1st reign) | |
| Reign | 15 September – 17 October 1730 |
| Predecessor | Nicholas Mavrocordatos |
| Successor | Mihai Racoviță |
| Prince of Wallachia (2nd reign) | |
| Reign | 24 October 1731 – 16 April 1733 |
| Predecessor | Mihai Racoviță |
| Successor | Grigore II Ghica |
| Prince of Moldavia (1st reign) | |
| Reign | 16 April 1733 – 26 November 1735 |
| Predecessor | Grigore II Ghica |
| Successor | Grigore II Ghica |
| Prince of Wallachia (3rd reign) | |
| Reign | 27 November 1735 – 16 September 1741 |
| Predecessor | Grigore II Ghica |
| Successor | Mihai Racoviță |
| Prince of Moldavia (2nd reign) | |
| Reign | 16 September 1741 – 29 July 1743 |
| Predecessor | Grigore II Ghica |
| Successor | John II Mavrocordatos |
| Prince of Wallachia (4th reign) | |
| Reign | July 1744 – April 1748 |
| Predecessor | Mihai Racoviță |
| Successor | Grigore II Ghica |
| Prince of Moldavia (3rd reign) | |
| Reign | April 1748 – 31 August 1749 |
| Predecessor | Grigore II Ghica |
| Successor | Iordache Stavrach |
| Prince of Wallachia (5th reign) | |
| Reign | February 1756 – 7 September 1758 |
| Predecessor | Constantin Racoviță |
| Successor | Scarlat Ghica |
| Prince of Wallachia (6th reign) | |
| Reign | 11 June 1761 – March 1763 |
| Predecessor | Scarlat Ghica |
| Successor | Constantin Racoviță |
| Prince of Moldavia (4th reign) | |
| Reign | 29 June – 23 November 1769 |
| Predecessor | Grigore Callimachi |
| Successor | Grigore III Ghica |
| Born | February 27, 1711 Constantinople, Ottoman Empire |
| Died | November 23, 1769 (aged 58) Iași, Moldavia |
| Dynasty | Mavrocordatos family |
Constantine Mavrocordatos (Greek: Κωνσταντίνος Μαυροκορδάτος, Romanian: Constantin Mavrocordat; February 27, 1711 – November 23, 1769) was a Greek noble who served as Prince of Wallachia and Prince of Moldavia at several intervals between 1730 and 1769. As a ruler he issued reforms in the laws of each of the two Danubian Principalities, ensuring a more adequate taxation and a series of measures amounting to the emancipation of serfs and a more humane treatment of slaves.