Richard William Brinsley Norton, 8th Baron Grantley (born 30 January 1956) is a retired banker and politician. In early life he worked for the Conservative Party, but joined the United Kingdom Independence Party when it was founded in 1993. As Baron Grantley, he was a member of the House of Lords from 1995 to 2000.

The son of John Norton, 7th Baron Grantley, through his maternal grandfather William Hare, 5th Earl of Listowel, he is descended from Mary Tudor, Queen of France, and so from many kings of England, including William the Conqueror.

He was educated at Ampleforth College in Yorkshire and at New College, Oxford, which he entered with an Open Scholarship in Mathematics, but graduated in Law. He was President of the Oxford Union in 1976

Norton worked in the Conservative Research Department from 1977 to 1981. In 1978 he was seconded to work for the Opposition front bench in the House of Lords. During the 1979 general election campaign he worked in Margaret Thatcher's Private Office. After the election, he became a special adviser for trade and energy and wrote The Benefits of Trade.

A councillor of the Royal Borough of Kensington and Chelsea from 1982 to 1986, he was the Conservative parliamentary candidate for the unwinnable Wentworth constituency at the 1983 general election.

He joined the United Kingdom Independence Party on its foundation and became one of its early patrons. On 24 June 1995 he succeeded his father, John Norton, 7th Baron Grantley and thus became UKIP's sole representative in Parliament. In 1996 he made his maiden speech in the House of Lords in the presence of his maternal grandfather, the Earl of Listowel, a member of the House of Lords since 1931, a feat unlikely ever to be repeated. In 1997 he became leader of UKIP in the House of Lords. He spoke in the House on five occasions. At the time of the reforms brought about by the House of Lords Act 1999, he did not stand for election as a continuing member, and so left the House in March 2000. He remains a member of UKIP.

In 1981 Grantley became a banker and worked as an international project financier at Morgan Grenfell, Deutsche Bank, and HSBC. He was a director of Morgan Grenfell International Limited and of HSBC Project and Export Finance. He was head of oil and gas project finance at both institutions, and retired in 2005.

Grantley is active in his local Residents' Association and was a patron of Save Sloane Square, which successfully campaigned to prevent the Royal Borough of Kensington and Chelsea from turning the centre of Sloane Square into a crossroads. He also participated in the successful campaign to prevent the developers of the Chelsea Barracks site from demolishing the Garrison Church. He is a patron of the Vaughan Parents Action Group which is campaigning to prevent the Cardinal Vaughan Memorial School in Holland Park, the outstanding Catholic comprehensive, from being turned into an ordinary local school.

Grantley is a Knight of Honour and Devotion of the Sovereign Military Order of Malta and serves on the council of its British Association, and as a director of The Hospital of St John and St Elizabeth. For ten years he was a director of The Order of St John Care Homes Trust. He is a regular worshipper at the London Oratory and a long standing devotee of the traditional Latin Mass.

Grantley is a keen bridge player. In 1972 he reached the final of the Daily Mail National Schools Bridge Competition; he was a regular member of the House of Lords bridge team in its annual matches against the House of Commons; and in 2011 he was a member of the Polish Club team which won the Devonshire Cup.