Clive Fiske Harrison (born 23 November 1939) is an English investment banker. He is the chairman of Fiske plc, an independent investment bank based in London.
According to Debrett's, Fiske Harrison was educated at Felsted School and Trinity Hall, Cambridge, and worked at Panmure Gordon, as a stockbroker, alongside David Cameron's father Ian, before joining Fiske & Co in the early 1970s.
In the late 1970s, Fiske & Co purchased the stockbrokers Bragg, Stockdale, Hall & Co, founded in 1828, and then headed by Michael Brudenell-Bruce, 8th Marquess of Ailesbury. (Lord Ailebsury became a partner at Fiske & Co, and later joined the board when it became a limited company.) Fiske has grown to over half a billion pounds under investment, became a publicly listed company in 2000, Fiske plc, and was named top investment bank by the financial news service Bloomberg the following year.
Its chairman has long taken a sceptical view of the market, leading the City Editor of The Times to comment in January 2009: "One person whose views I respect is Clive Fiske Harrison who runs Fiske & Co, the stockbroker. He has spent no less than 47 years in the stock market. In a letter to clients and friends just before Christmas he warned that the market's reaction to the present problems was still relatively modest in the context of past crises and almost certainly had further to go." Three years later the City Editor of the Evening Standard congratulated him on his half century, pointing out that he had joined Panmure Gordon at the same time as the famously long serving David Mayhew who became chairman of , later J.P. Morgan Cazenove, but even he had retired the year before.
According to Burke's, he is a descendant of Fiske Goodeve Fiske-Harrison of Copford Hall. (He is also a distant cousin of Field Marshall Earl Kitchener and, by marriage, Field Marshal Viscount Gough.) He married and had three sons. His eldest son Byron is a polo player and was a cavalry officer in the British Army, his middle son Jules was, according to The Times, a "famously skilled and fearless skier" who died in a skiing accident in Zermatt, Switzerland in 1988 and his youngest son Alexander is a bullfighter who also participates in the annual 'running of the bulls' in Pamplona alongside his father.