1988–89 National Division 1
| 1988–89 National Division 1 | |
|---|---|
| Countries | England |
| Date | 10 September 1988 – 22 April 1989 |
| Champions | Bath (1st title) |
| Runners-up | Gloucester |
| Relegated | Liverpool St.Helens Waterloo |
| Matches played | 66 |
| Top point scorer | 103 – Rob Andrew (Wasps) |
| Top try scorer | 10 – Jeremy Guscott (Bath) |
The 1988–89 National Division 1 (sponsored by Courage Brewery) was the second season of the top tier of the English rugby union league system, the Courage Clubs Championship, currently known as Premiership Rugby. Leicester were the defending champions, and Liverpool St Helens and Rosslyn Park the promoted sides.
Bath became champions for the first time winning the league by a convincing margin from runners–up Gloucester. Waterloo and Liverpool St.Helens finished in the bottom two and were relegated to the 1989–90 National Division 2.