The 1997–98 National League 2 South was the eleventh full season of rugby union within the fourth tier (south) of the English league system, previously known as Division 4 South, and was the first to be sponsored by Jewson who replaced former sponsor Courage.
It is counterpart to National League 2 North, which covers the northern half of the country.
At the end of the campaign Camberley were the league champions, finishing 3 points clear of runners up Henley Hawks, with both teams promoted to the 1998–99 National League 1.
[1] There was no relegation this season in order to prevent an imbalance of teams in the leagues due to RFU changes for the following season which would see tier 2 increased from 12 to 14 teams and tier 3 reduced from 16 to 14 teams.
There was no relegation this season due to changes higher up in the English league system.