List of chief ministers of Bihar
The chief minister of Bihar is the chief executive of the Indian state of Bihar. As per the Constitution of India, the Governor of Bihar is the state's de jure head, but de facto executive authority rests with the chief minister. Following elections to the Bihar Legislative Assembly, the governor usually invites the party (or coalition) with a majority of seats to form the government. The governor appoints the chief minister, whose council of ministers are collectively responsible to the assembly. Given that he has the confidence of the assembly, the chief minister's term is for five years and is subject to no term limits. From 1946, 23 people have been Chief Minister of Bihar. The inaugural holder was Sri Krishna Sinha of the Indian National Congress party, he also has the longest incumbency. The current incumbent is Nitish Kumar who is having incumbency since 22 February 2015. Premiers of Bihar
The province of Bihar headquartered in Patna then comprised the present-day states Bihar and Jharkhand. On 1 April 1936, Bihar and Orissa became separate provinces by the partition of the province of Bihar and Orissa. Under the Government of India Act 1935, a bicameral legislature was set up with a legislative assembly and a legislative council with a government headed by the Premier. Key 
Colour key for political parties

Chief ministers of Bihar
Key
 No. : Incumbent number
  Assassinated or died in office
  Returned to office after a previous non-consecutive term
  Resigned
  Resigned following a no-confidence motion

Statistics 
List of chief ministers by length of term
Dr. Shri Krishna Singh held the record for the longest continuous term as the first Chief Minister of Bihar and maintained the longest term in office until 2023. However, Nitish Kumar later surpassed Dr. Shri Krishna Sinha's overall tenure, while Shri Krishna Sinha still holds the record for the longest continuous term. Timeline

Political Party

Living former chief ministers of Bihar

As of   , there are three living former chief ministers of Bihar:

The most recent death of a former chief minister was that of Jagannath Mishra on 19 August 2019 aged 82. 