1989–90 Area League South

1989–90 Area League South
Countries England
ChampionsMetropolitan Police (1st title)
Runners-upClifton (also promoted)
RelegatedSalisbury
Matches played110

The 1989–90 Area League South was the third full season of rugby union within the fourth tier of the English league system, later known as National League 2 South, and counterpart to Area League North (now known as National League 2 North). It would be the last season the division would be known as Area League South and would be renamed as National Division 4 South for the following year.

Metropolitan Police won the championship winning nine of their ten league matches and were promoted to the 1990–91 National Division 3. Clifton (also promoted) came second, one point behind, and were the only team to defeat the champions. Only one team, Salisbury was relegated and they will play in South West Division One next season.