Magadh University is a public university and institution of higher education in Bihar, India. It is recognised by the University Grants Commission (UGC).

The university is governed by the Bihar State University Act 1976.

It provides facilities for higher learning and research in the faculties of science, social sciences, humanities and commerce. With 19 constituent colleges, 22 PG departments and 39 affiliated colleges, Magadh University is the largest university in Bihar.

After years of discussion and thought, Magadh University was finally split in 2018 and another university i.e. Pataliputra University came into being which covered under its jurisdiction all colleges located within the geographic area of Patna and Nalanda district that were earlier under Magadh University.