Dean Russell McKeown (born 5 February 1960) is a retired British Thoroughbred horse racing jockey.
While never a Champion jockey, McKeown has won a number of important Conditions races in the United Kingdom including three editions of the Cambridgeshire Handicap at Newmarket Racecourse.
He also won the Ebor Handicap (2002) and Chester Cup (2003) aboard Hugs Dancer then in the fall of 2004 became the regular jockey for trainer Alan Swinbank where he became an integral part of the racing success of Collier Hill.
Riding Collier Hill, McKeown won a number of major international races, including the 2005 Group 2 Gerling-Preis in Cologne, Germany, the C$2 million Grade 1 Canadian International at Woodbine Racetrack in Canada, and the HK$14 million Hong Kong Vase in Hong Kong, China.
McKeown was found guilty after his ride on Rascal In The Mix in the 1.30 maiden auction stakes finished unplaced having attracted significant market support before drifting.