James Roger Crompton Lupton, Baron Lupton, CBE (born 15 June 1955) is a former chairman of Greenhill Europe and Co-Treasurer of the Conservative Party, having donated circa £3.3 million to the party.

[1] He was created a life peer taking the title Baron Lupton, of Lovington in the County of Hampshire on 6 October 2015.

[3] He was previously Deputy Chairman of Baring Brothers International Ltd until the bank collapsed in 1995.

[4] Lupton was appointed Commander of the Order of the British Empire (CBE) in the 2012 New Year Honours.

[5] In 2016, then prime minister David Cameron re-appointed Lupton to the board of the British Museum for a further four-year term, ending 11 June 2020.