Munger, formerly spelt as Monghyr, is a twin city and a Municipal Corporation situated in the Indian state of Bihar. It is the administrative headquarters of Munger district and Munger Division. Munger was one of the major cities in Eastern India and undivided Bengal during Mughal period and British Raj. It is one of the major political, cultural, educational and commercial center of Bihar and Eastern India. Munger is situated about 180km from east of capital city Patna, about 480km west of Eastern India's largest city Kolkata and 1200km from country's capital New Delhi.

Munger district is one of the thirty-eight districts of Bihar state in eastern India. The city of Munger is the administrative headquarters of this district. The district is a part of Munger Division. Its literacy rate of 73.3% is higher than the state literacy rate of 63.8%, but lower than national rate of 74.04%.