The 2004 Twenty20 Cup was the second edition of what would later become the T20 Blast competition, England's premier domestic Twenty20 competition.. The finals day took place on 7 August at Edgbaston, Birmingham, and was won by the Leicestershire Foxes.

Points table + Midlands/Wales/West DivisionTeam Glamorgan Dragons541008+0.439Warwickshire Bears532006+0.611Worcestershire Royals532006–0.275Somerset Sabres522015–0.389Gloucestershire Gladiators513013–0.379Northamptonshire Steelbacks514002–0.464

+ North DivisionTeam Leicestershire Foxes531017+0.215Lancashire Lightning532006+0.276Derbyshire Phantoms522015–0.036Durham Dynamos523004+0.265Nottinghamshire Outlaws523004–0.556Yorkshire Phoenix523004–0.108

+ South DivisionTeam Surrey Lions540019+2.137Hampshire Hawks532006+0.326Essex Eagles522015+0.529Kent Spitfires523004–0.207Middlesex Crusaders513013–1.235Sussex Sharks513013–1.716

Fixtures

Group stage

Midlands/Wales/West Division

North Division

South Division

Knockout stage

Quarter-finals

Semi-finals

Final

References Tournament site on ESPN CricInfo Tournament site on CricketArchive