| 2004–2005 Zurich Premiership | |
| Champions: | London Wasps (5th title) |
| Runnersup: | Leicester Tigers |
| Relegated: | Harlequins |
| Matches: | 137 |
| Attendance: | 1481355 |
| Top Point Scorer: | Andy Goode (268) |
| Top Try Scorer: | Tom Voyce (12) |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
The 2004–05 Zurich Premiership was the 18th season of the top flight of the English domestic rugby union competitions.
For the first time, two of the opening games of the season were played at Twickenham, in the 2004 London Double Header, between the four "London" teams: Harlequins, London Irish, London Wasps and Saracens.[1]
At the end of the season, Harlequins were relegated, to be replaced by Bristol for 2005–06.
| Team | Stadium | Capacity | City/Area |
|---|---|---|---|
| Bath | Recreation Ground | 10,500 | Bath, Somerset |
| Gloucester | Kingsholm | 13,000 | Gloucester, Gloucestershire |
| Harlequins | The Stoop | 8,500 | Twickenham, London |
| Leeds Tykes | Headingley Stadium | 22,250 | Leeds, West Yorkshire |
| Leicester Tigers | Welford Road | 16,815 | Leicester, Leicestershire |
| London Irish | Madejski Stadium | 24,161 | Reading, Berkshire |
| London Wasps | The Causeway Stadium | 10,000 | High Wycombe, Buckinghamshire |
| Newcastle Falcons | 10,200 | ||
| Northampton Saints | Franklin's Gardens | 12,100 | Northampton, Northamptonshire |
| Sale | Edgeley Park | 10,641 | Stockport, Greater Manchester |
| Saracens | Vicarage Road | 22,000 | Watford, Hertfordshire |
| Worcester | Sixways | 8,477 | Worcester, Worcestershire |
As for the 2003–04 season, the first placed team automatically qualified for the final, where they played the winner of the second vs third place semi-final. This was the last season in which that format of play-off was used.
Note: Flags to the left of player names indicate national team as has been defined under World Rugby eligibility rules, or primary nationality for players who have not earned international senior caps. Players may hold one or more non-WR nationalities.
Source:[2]
| Rank | Player | Club | Points |
|---|---|---|---|
| 1 | Andy Goode | Leicester Tigers | 268 |
| 2 |  Mark van Gisbergen | Wasps | 225 |
| 3 | Charlie Hodgson | Sale Sharks | 200 |
| 4 | Jeremy Staunton | Harlequins | 186 |
| 5 |  Shane Drahm | Northampton Saints | 180 |
| 6 | Gordon Ross | Leeds Tykes | 161 |
| 7 | Jonny Wilkinson | Newcastle Falcons | 150 |
| 8 | Barry Everitt | London Irish | 145 |
| 9 | Henry Paul | Gloucester | 136 |
| 10 | Chris Malone | Bath | 133 |
Source:[3]
| Rank | Player | Club | Tries |
|---|---|---|---|
| 1 | Tom Voyce | Wasps | 12 |
| 2 | Mark Cueto | Sale Sharks | 11 |
| Ayoola Erinle | Wasps | ||
| 4 | Steve Hanley | Sale Sharks | 9 |
| 5 | Neil Back | Leicester Tigers | 7 |
| Scott Staniforth | |||
| Michael Stephenson | Newcastle Falcons | ||
| 8 | 8 players | 6 | |