Jaswant Singh is an Indian politician. He belongs to the Bharatiya Janata Party and has held many portfolios in the national cabinet including Finance, External Affairs and Defence during the NDA regime (1998 to 2004). He was also the Leader of Opposition from 2004 to 2009 in the Rajya Sabha and the Deputy Chairman of the Planning Commission of India(1998–99).

Known for his moderate political views, he is a self-described liberal democrat even though the Bharatiya Janata Party is often described as a right-wing nationalist organization. Currently he represents Darjeeling parliamentary constituency in the 15th Lok Sabha.