Lezha, also known as Olidovka, is a river in Gryazovetsky, Vologodsky, and Mezhdurechensky Districts of Vologda Oblast in Russia. It is a right tributary of the Sukhona. It is 178 kilometres (111 mi) long, and the area of its basin 3,550 square kilometres (1,370 sq mi). The principal tributaries are the Senga (left), the Velikaya (right), and the Komela (left).