The Patna high Court is the High Court of the state of Bihar. It was established on 3 February 1916 and later affiliated under the Government of India Act 1915.

The high courts of India are the highest courts of appellate jurisdiction in each state and union territory of India. However, a high court exercises its original civil and criminal jurisdiction only if the subordinate courts are not authorized by law to try such matters for lack of peculiar or territorial jurisdiction. High courts may also enjoy original jurisdiction in certain matters, if so designated, especially by the constitution, a state law or union law.