Peter Gilbert Greenall, 4th Baron Daresbury, DL (born 8 July 1953), is a British aristocrat and businessman associated primarily with horseracing, notably as the chairman of Aintree Racecourse from 1989 to 2014.
From 1982 he was a director, and from 1992 to 1997 managing director, of the family business, Greenall's, as it evolved from a diversified brewery into De Vere; after serving as chief executive from 1997 and chairman from 2000, he left DeVere in 2006 when the company was sold.
He therefore became a member of the House of Lords, the upper chamber of the British Parliament, sitting as a hereditary peer.
Lord Daresbury was removed from the House with the passage and commencement of the House of Lords Act 1999, which removed the right of all but ninety-two hereditary peers to sit; Daresbury was not one of the remaining minority.
[4] A keen horseracing enthusiast, and himself a rider, Daresbury was appointed to the chairmanship of Aintree, home of the Grand National, Britain's richest horserace, in 1989 at the age of 35.