The English Rugby Union league is divided up into five divisions - the Premiership, Divisions One and Two, and Divisions Three South and North. Teams who finish top of a division get promoted upwards and those who finish last get relegated.
The teams here are shown as they were at the start of the 2003/2004 season.
Premiership
see Zurich Premiership
- Bath Rugby
- Gloucester
- Leeds Tykes
- Leicester Tigers
- London Irish
- Wasps
- Harlequins
- Newcastle Falcons
- Northampton Saints
- Rotherham Titans (relegated to First Division for 2004/05)
- Sale Sharks
- Saracens
First Division
- Bedford Blues
- Birmingham and Solihull ('Pertemps Bees')
- Bristol Shoguns
- Coventry
- Exeter Chiefs
- London Welsh
- Manchester (relegated to Second Division for 2004/05)
- Orrell Anvils
- Otley
- Penzance and Newlyn
- Plymouth Albion
- Wakefield
- Worcester Warriors (promoted to Zurich Premiership for 2004/05)
Second Division
- Bracknell
- Doncaster
- Esher
- Harrogate
- Lydney
- Moseley
- Newbury
- Nottingham
- Nuneaton
- Rosslyn Park
- Rugby Lions
- Sedgley Park
- Stourbridge
- Wharfedale
Lower divisions
- Blackheath (promoted to National Division 2 for 2004/5)