The list of political families of Bihar state of India:
The Yadav Family
Lalu Prasad Yadav, ex Bihar chief minister
Rabri Devi, wife of Lalu Prasad, former Bihar Chief Minister,MLC
Sadhu Yadav, Rabri Devi's brother,ex MP
Subhash Yadav, Rabri Devi's brother,ex MP
Tej Pratap Yadav, elder son of Lalu Prasad Cabinet Minister of Health from Government of Bihar
Tejashwi Yadav, younger son of Lalu Prasad, ex cricketer and current Deputy Chief Minister of Bihar
Misa Bharati, eldest daughter of Lalu Prasad, MP (Rajya Sabha)
Tej Pratap Singh Yadav, son in law of Lalu Prasad, Member of Parliament from Mainpuri
'"The Kumar family"'
Nitish Kumar, (Chief Minister of Bihar)
Nishant Kumar (son of Nitish Kumar)
Manju Kumari Sinha (wife of Nitish Kumar)
The Thakur Jugal Kishore Sinha Family
Thakur Jugal Kishore Sinha, (Freedom Fighter, Member first Lok Sabha) Known as the father of Cooperative Movement in India.
Ram Dulari Sinha, wife of Thakur Jugal Kishore Sinha,(Freedom Fighter, Member first Vidhan Sabha) Former Union Minister & Governor
Madhurendra Kumar Singh,Member All India Congress Committee, Ex Director Bihar State Cooperative Bank
Mrigendra Kumar Singh, son of Dr. Madhurendra Kumar Singh Secretary, Bihar Pradesh Congress Committee
'"The Sinha Family"'
Dr.Anugrah Narayan Sinha, (statesman,Freedom Fighter and first Deputy Chief Minister of Bihar, 1946–1957)(Father)
Satyendra Narayan Sinha,Freedom Fighter,(Member of Provisional Parliament, 1950-1952 & Former Chief Minister of Bihar & prominent leader of JP movement, (Son Of Dr Anugrah Narayan Sinha)
Kishori Sinha,(former Member Of Parliament)-(Wife Of Satyendra Narayan Sinha)
Nikhil Kumar, Governor Of Kerala (son of Satyendra Narayan Sinha)
Shyama Singh,(Ex Member of Parliament) (Wife of Nikhil Kumar)
Dr. Vijay Kumar Singh,Former Cabinet Minister, Government of Bihar, (Satyendra Narain Sinha's nephew)
Laxmi Narayan Singh,(Bihar BJP leader)-Nikhil Kumar's son in law)
Rameshwar Prasad Sinha,(father of Kishori Sinha,Member Constituent Assembly of India, 1947–1950), MLA,Bihar (1937-1939)
N. K. Singh, Rajya Sabha MP (Brother-in-law Of Nikhil Kumar)
Uday Singh,(Member Of Parliament)-(Nikhil Kumar's younger brother in law)
Madhuri Singh,(former MP)-(Nikhil Kumar's mother in law)
Chandrashekhar Singh, former Chief Minister of Bihar,former Union Minister, Government of India (Samadhi of S.N. Sinha )
Manorma Singh,former Member of Parliament,Wife of Chandrashekhar Singh
The Mishra Family
Lalit Narayan Mishra, Former Railway Minister of India
Kameshwari Devi, contested from Jhanjhapur in 7th Loksabha ( Wife of Lalit Narayan Mishra)
Vijay Kumar Mishra, Currently MLC, Ex MP and three terms MLA and active politician in Bihar Janta Dal United(Son of Lalit Narayan Mishra)
Gouri Shankar Rajhans, Ex MP, Bihar (Husband of niece of Lalit Narayan Mishra)
Jagannath Mishra, Former Chief Minister and Union Cabinet Minister (Brother of Lalit Narayan Mishra)
Nitish Mishra,Rural Development Minister and MLA in Bihar (Son of Dr Jagannath Mishra)
Rishi Mishra,Recently elected MLA and the General Secretary, Janata Dal United Bihar (son of Vijay Kumar Mishra)
Pooja Mishra Jha,Member of Labour Party in United Kingdom, (Daughter of Vijay Kumar Mishra)
Shipra Mishra,Is an active member of Mahila congress(Daughter-in-law of Dr.Jagannath Mishra)
The Jagjivan Ram Family
Jagjivan Ram, independence activist and Deputy Prime Minister of India
Mira Kumar, is daughter of Babu Jagjivan Ram, first woman Speaker of Lok Sabha
The family of Jagdeo Prasad
Jagdeo Prasad, Freedom Fighter,member of Indian National Congress
Satish Prasad Singh , former Chief Minister of Bihar (Samadhi of Jagdeo Prasad)
Nagmani, former Union Minister (Son of Jagdeo Prasad)
Suchitra Sinha , former Cabinet Minister, Bihar (Daughter-in-law of Jagdeo Prasad)
Paswan family
Ram Vilas Paswan, Minister of Railways and current Minister of Consumer Affairs, Food and Public Distribution
Chirag Paswan, actor and Member Of Parliament from Jamui
Ram Chandra Paswan brother of Ram Vilas Paswan and Member Of Parliament from Samastipur
Ranjan family
Pappu Yadav Member Of Parliament from Madhepura
Ranjeet Ranjan Member Of Parliament from Supaul
Azad Family
Bhagwat Jha Azad, former Chief Minister of Bihar
Kirti Azad, Member Of Parliament from Darbhanga