Manuchar II Dadiani (Georgian: მანუჩარ II დადიანი; died c. 1840[1]), of the House of Dadiani, was Prince of Mingrelia from 1791 to 1793 as a rival to his elder brother, Grigol Dadiani, whose rule was marred by the long-standing struggle between the Imeretian crown seeking to subdue Mingrelia and Mingrelian efforts to win full independence, a continuation of the conflict which had plagued western Georgia for centuries. After the brothers reconciled in 1799, Manuchar was appanaged with Salipartiano, which he lost to his nephew Levan, a new Prince of Mingrelia, in the wake of Grigol's death in 1804.