1997–98 National League 1

1997–98 National League 1
Countries England
ChampionsWorcester (1st title)
Runners-upLeeds (also promoted)
Relegatedno relegation

The 1997–98 National League 1, sponsored by Jewson, was the eleventh full season of rugby union within the third tier of the English league system, currently known as National League 1. For the first ten seasons Courage Brewery sponsored the league. Following reorganisation the top two divisions are sponsored by the assurance company Allied Dunbar and the rest of the divisions, including National League 1 is sponsored by the building suppliers, Jewson.

Worcester finished as champions. Due to league restructuring by the RFU, runners up Leeds, 3rd place London Welsh and fourth place Rugby Lions were also promoted to the 1998–99 Premiership 2, and there was no relegation.