The 2004 UK & Ireland Greyhound Racing Year was the 79th year of greyhound racing in the United Kingdom and Ireland.

Irish racing was experiencing promising growth with increased prize money for competitions including the richest ever prize for a marathon event when the Corn Cuchulainn offered €50,000 for the winner at Harold's Cross.^[1]

The situation in Britain was not as simple after Richard Caborn, the Minister for Sport announced that it had been agreed that the bookmakers levy fund would increase to 0.5% in 2004, 0.55% in 2005 and 0.6% in 2006 and therefore doubling the sports income to £16 million within the three years.^[2] However the statement was incorrect because a 0.1% increase after three years would mean only a one sixth increase (16.6%).^[2] The promise turned out to be false because the levy fund actually decreased significantly over the next five years.^[3]

Droopys Scholes won the 2004 English Greyhound Derby^[4] and Like A Shot won the 2004 Irish Greyhound Derby.^[5] Charlie Lister won the Greyhound Trainer of the Year and Derby finalist, Arc, East Anglian Derby and Oxfordshire Gold Cup winner Fire Height Dan won the Greyhound of the Year.^[2]