Danapur (also known as Danapur Nizamat) is an Indian satellite town located in the Patna district of Bihar state. It serves as one of six subdivisions, or tehsils, within the district and is a constituent part of the Patna Metropolitan Region. The town was officially constituted as a municipality in 1887.
The area is notable for hosting the Sub-Area Headquarters of Bihar and Jharkhand within its army cantonment. Additionally, Danapur serves as an important shelter and hatchery for migrating Siberian cranes, known locally as Janhgil. These birds arrive annually during the monsoon season for breeding purposes before departing at the beginning of the winter season.