Mamia III Gurieli was a Prince of Guria,  a southwestern region in Georgia, and was located between the Black Sea and Lesser Caucasus.
Mamia III Gurieli (Georgian:  III ), also known as Mamia the Great Gurieli ( , Didi Gurieli) or the Black Gurieli ( , Shavi Gurieli) (died 5 January 1714), of the western Georgian House of Gurieli, was Prince of Guria from 1689 to 1714. Centered on modern-day Guria, a southwestern region in Georgia, it was located between the Black Sea and Lesser Caucasus, and was ruled by a succession of twenty-two princes of the House of Gurieli from the 1460s to 1829. 
