​VERKHNE-UDINSK, a town of Asiatic Russia, in East Siberia, province of Transbaikalia, on the right bank of the Uda, at its confluence with the Selenga, 102 m. by rail E. of Lake Baikal, to which steamers ply. Pop. (1883) 4130; (1897) 8002. It was founded as a small fort in 1668, and is a centre for the overland trade in tea with China, and an emporium both for grain and animal products, exported, and for metals, machinery and manufactured goods, imported. Its yearly fair is of great importance.