Limnia (Greek: τα Λιμνία) was the westernmost subdivision of the medieval Empire of Trebizond, consisting of the southern coastline of the Black Sea around the mouth of the Yeşilırmak River.
Anthony Bryer traces its origins to a Byzantine supply base named Kinte, used by Emperor John II Komnenos in the winter solstice of 1140.
[2] In 1317, according to Bryer, although it "was the last and lowliest of the suffragans of Amaseia its bishops assumed the metropolitan rights of the inland city.
"[3] On the other hand, Speros Vryonis explains that the metropolitan of Amaseia, one Callistus, who had been appointed to fill a long-standing vacancy in 1315, had been unable to enter his see and in 1317 a synodal decree directed him to reside in Limnia "until conditions improved and the Turks would permit him to enter Amaseia.
Between the two dates, Limnia irrevocably slipped from Trapezuntine control and became a Turkoman possession.