Grigol Dadiani (Georgian: გრიგოლ დადიანი; 1770 – 23 October 1804), of the House of Dadiani, was Prince of Mingrelia from 1788 to 1804, with intermissions from 1791 to 1794 and in 1802 when his position was filled by his rivaling brothers. His 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. Grigol's rapprochement with the expanding Russian Empire resulted in Mingrelia becoming, in 1804, a Russian subject with a degree of internal autonomy under the Dadiani dynasty, an arrangement which remained in place until 1856.