Mogochinsky District () is an administrative and municipal district (raion), one of the thirty-one in Zabaykalsky Krai, Russia. It is located in the east of the krai and borders China in the east and south. The area of the district is . Its administrative center is the town of Mogocha. As of the 2010 Census, the total population of the district was 25,508, with the population of Mogocha accounting for 52.0% of that number.
The district was established on January 4, 1926.
The northern part of the district is located in the Olyokma-Stanovik Highlands area. The Amazar, one of the tributaries of the Amur, flows across it.