The 2004 English cricket season was the 105th in which the County Championship had been an official competition. England recorded a 4–0 Test series whitewash over the West Indies^[1] and a comfortable 3–0 win over New Zealand.^[2] Their one-day form was sporadic, however. In the Natwest Trophy, they failed to make the final, which saw New Zealand defeat the West Indies by 107 runs. In the Natwest Challenge, they beat India 2–1.^[3] In domestic cricket, Warwickshire won the County Championship.

• County Championship - Warwickshire
• C&G Trophy - Gloucestershire
• National League - Glamorgan
• Twenty20 Cup - Leicestershire
• Minor Counties Championship - Bedfordshire and Devon shared title
• MCCA Knockout Trophy - Berkshire
• Second XI Championship - Somerset II
• Second XI Trophy - Worcestershire II
• Wisden Cricketers of the Year - Ashley Giles, Steve Harmison, Robert Key, Andrew Strauss, Marcus Trescothick

After scoring 642 in the first innings of their County Championship against Glamorgan at the County Ground in September, Essex lose the match by 4 wickets. Essex's total of 642 is the highest total in the first innings of a first-class match by the losing side.^[4]