1992–93 National Division 4 South
| 1992–93 National Division 4 South | |
|---|---|
| Countries | England |
| Champions | Sudbury (1st title) |
| Runners-up | London Welsh |
| Relegated | 12 teams |
| Matches played | 156 |
The 1992–93 National Division 4 South was the sixth full season of rugby union within the fourth tier of the English league system, currently known as National League 2 South.
By the end of the campaign Sudbury were crowned league champions, 2 points clear of runners-up London Welsh. Impending changes to the league structure by the RFU meant that several new leagues were to be introduced. This meant that champions Sudbury were promoted into the newlook 1993–94 National Division 4, clubs ranked 2nd to 12th fell to the new 1993–94 National Division 5 South and Thurrock dropped two levels down to London & SE Division 1.