2005–06 Premiership Rugby
The 2005–06 Guinness Premiership was the 19th season of the top flight of the English domestic rugby union competitions, played between September 2005 and May 2006. The final was contested by the Sale Sharks and the Leicester Tigers at Twickenham. Sale Sharks won 45–20 to win the Premiership. Leeds Tykes were relegated, whilst Harlequins were promoted for the 2006-07 Guinness Premiership.
As per a tradition started in the previous year, two of the opening games of the season were played at Twickenham, in the 2005 London Double Header.
Participating teams
| Team | Stadium | Capacity | City/Area |
| Bath | Bath | 10,600 | Bath, Somerset |
| Bristol | Memorial Stadium | 12,100 | Bristol |
| Gloucester | Kingsholm | 12,500 | Gloucester, Gloucestershire |
| 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 | Kingston Park | 10,200 | Newcastle upon Tyne, Tyne and Wear |
| Northampton Saints | Franklin's Gardens | 13,600 | Northampton, Northamptonshire |
| Sale | Edgeley Park | 10,852 | Stockport, Greater Manchester |
| Saracens | Vicarage Road | 22,000 | Watford, Hertfordshire |
| Worcester | Sixways | 9,728 | Worcester, Worcestershire |
;Notes
Table
Results
Round 1
Round 2
Round 3
Round 4
Round 5
Round 6
Round 7
Round 8
Round 9
Round 10
Round 11
Round 12
Round 13
Round 14
Round 15
Round 16
Round 17
Round 18
Round 19
Round 20
Rearranged fixture
Round 21
Round 22
Play-offs
Semi-finals
Final
Sky Sports Dream Team 2005/06
15 Matt Burke14 Tom Varndell
13 Mathew Tait
12 Mike Catt
11 Tom Voyce
10 Carlos Spencer
9 Justin Marshall
1 Tony Windo
2 Mark Regan
3 Cobus Visagie
4 Danny Grewcock
5 Ben Kay
6 Matt Salter
7 Magnus Lund
8 Juan Manuel Leguizamón
Total Season Attendances
| Club | Home Games | Total | Average | Highest | Lowest | % Capacity |
| Bath | 11 | 114,965 | 10,451 | 10,600 | 9,957 | 99% |
| Bristol | 11 | 101,911 | 9,265 | 11,916 | 7,068 | 77% |
| Gloucester | 11 | 127,302 | 11,573 | 12,500 | 9,374 | 93% |
| Leeds Tykes | 11 | 91,146 | 8,286 | 35,000 | 3,718 | 27% |
| Leicester Tigers | 12 | 199,034 | 16,586 | 16,815 | 14,069 | 99% |
| London Irish | 11 | 120,511 | 10,956 | 19,884 | 6,957 | 45% |
| London Wasps | 11 | 125,065 | 11,370 | 35,000 | 7,901 | 86% |
| Newcastle Falcons | 11 | 88,328 | 8,030 | 10,200 | 6,405 | 79% |
| Northampton Saints | 11 | 145,769 | 13,252 | 13,585 | 12,018 | 97% |
| Sale Sharks | 12 | 116,685 | 9,724 | 10,641 | 7,056 | 90% |
| Saracens | 11 | 88,852 | 8,077 | 12,923 | 5,216 | 37% |
| Worcester Warriors | 11 | 106,352 | 9,668 | 9,776 | 9,140 | 99% |