| Tournament details | |
|---|---|
| Venue(s) | Basin Reserve, Wellington |
| Dates | 16 September 1990 |
| Final positions | |
| Champions | Mount Wellington (5th title) |
| Runner-up | Christchurch United |
| Tournament statistics | |
| Jack Batty Memorial Cup | Michael McGarry (Christchurch United) |
The 1990 Chatham Cup was the 63rd annual nationwide knockout football competition in New Zealand.
Up to the last 16 of the competition, the cup was run in three regions (northern, central, and southern). National League teams received a bye until the final 64 stage. In all, 147 teams took part in the competition.