1999–00 Premiership 1
| 1999–00 Premiership 1 | |
|---|---|
| Countries | England |
| Date | 10 September 1999 – 28 May 2000 |
| Champions | Leicester Tigers (4th title) |
| Runners-up | Bath |
| Relegated | Bedford |
| Matches played | 132 |
| Attendance | 751,784 (average 5,695 per match) |
| Highest attendance | 17,109 – Leicester v Bath (21 May 2000) |
| Lowest attendance | 1,486 – Bedford v Sale (14 May 2000) |
| Top point scorer | 324 – Jarrod Cunningham (London Irish) |
| Top try scorer | 15 – Iain Balshaw (Bath) |
The 1999–00 Premiership 1 was the thirteenth season of the first tier of the English league system, currently known a Premiership Rugby, and the third and final to be sponsored by Allied Dunbar, having previous been sponsored by Courage Brewery. Leicester Tigers were defending champions and Bristol the promoted side. The league was reduced from fourteen teams to twelve following London Scottish and Richmond both entering administration.
At the end of the season Leicester Tigers finished as champions, retaining their title (and fourth overall). Bottom side Bedford were relegated to the 2000–01 National Division One (formerly Premiership 2) after losing the promotion-relegation playoff against Premiership 2 champions Rotherham.