Ketevan Orbeliani (Georgian: ქეთევან ორბელიანი; died 1750) was a Georgian princess of the Orbeliani family. She was betrothed to Prince Heraclius, of the royal house of Kakheti and the future king of Georgia, in 1738, but the union was repudiated by Heraclius himself. Traditional genealogy considered her to have been the first wife of Heraclius until their divorce in 1744 and the mother of two of his children. More recent version, now widely accepted among the historians of Georgia, has it that Heraclius did not actually marry Princess Orbeliani, but disowned the engagement and took Ketevan, daughter of Prince Zaal Pkheidze, as his first legitimate wife in 1740.