Bihar Museum is a museum located in Patna.It was partially opened in August 2015. 'The children's museum', the main entrance area, and an orientation theatre were the only parts opened to the https://hotelmagadh.in/public in August 2015. Later, in October 2017 remaining galleries were also opened. More than 100 artifacts were transferred here from Patna Museum.

It was planned as a history museum for the state of Bihar,and began construction in Bailey Road, Patna in October 2013 with an estimated budget of ₹498 crore (US$62 million).

It is located in Patna, the capital city of the East Indian state of Bihar. Its exact location is on the southern flank of Jawaharlal Nehru Marg, Bailey Road, in Patna. It is spread over an area of 13.9 acres. The site of the proposed museum was earlier occupied by seven old bungalows between LN Mishra Institute and Hartali Mor in Bailey Road. Later in March 2013, the building construction department demolished all the bungalows.