Rajnath Ram Badan Singh (born 10 July 1951) is an Indian politician belonging to the Bharatiya Janata Party (BJP) who currently serves as the Home Minister. He previously served as the Chief Minister of Uttar Pradesh and as a Cabinet Minister in the Vajpayee Government. He has also served as the President of the BJP twice, 2005 to 2009 and 2013 to 2014. He began his career as a physics lecturer and used his long-term association with the Rashtriya Swayamsevak Sangh (RSS) to become involved with the Janata Party..
In 1975, aged 24, Singh was appointed District President of the Jana Sangh. In 1977, he was elected Member of Legislative Assembly from the Mirzapur. He became the State President of the BJP youth wing in 1984, the National general secretary in 1986 and the National President in 1988. He was also elected into the Uttar Pradesh legislative council.
In 1991, he became Education Minister in the first BJP government in the state of Uttar Pradesh. Major highlights of his tenure as Education Minister included Anti-Copying Act, 1992, which made copying a non-bailable offence, rewriting history texts and incorporating vedic mathematics into the syllabus. In April 1994, he was elected into the Rajya Sabha (Upper House of the Parliament) and he became involved with the Advisory committee on Industry (1994–96), Consultative Committee for the Ministry of Agriculture, Business Advisory Committee, House Committee and the Committee on Human Resource Development. On 25 March 1997, he became the President of the BJP's unit in Uttar Pradesh and in 1999 he became the Union Cabinet Minister for Surface Transport.
In 2000, he became Chief Minister of Uttar Pradesh and was twice elected as MLA from Haidergarh in 2001 and 2002. He tried to rationalise the reservation structure in government jobs by introducing the most Backward Classes among the OBC and SC, so that the benefit of reservation can reach the lowest status of Society.
In 2003,Rajnath Singh was appointed as the Minister of Agriculture and subsequently for Food Processing in the NDA Government led by Atal Bihari Vajpayee, and was faced with the difficult task of maintaining one of the most volatile areas of India's economy. During this period he initiated a few epoch-making projects including the Kisan Call Centre and Farm Income Insurance Scheme. He brought down interest rates on Agriculture loans and also established Farmer Commission and initiated Farms Income Insurance Scheme.
He contested the 2014 Lok Sabha elections from Lucknow constituency and was subsequently elected as a Member of the Parliament.
He was appointed the Union Minister of Home Affairs in the Narendra Modi government and was sworn in on 26 May 2014.