| Tournament details | |
|---|---|
| Venue(s) | Basin Reserve, Wellington |
| Dates | 3 September 1966 |
| Final positions | |
| Champions | Miramar Rangers (1st title) |
| Runner-up | Western |
The 1966 Chatham Cup was the 39th annual nationwide knockout football competition in New Zealand.
The competition was run on a regional basis, with 17 regional associations holding separate qualification rounds. The winners of each of these qualification tournaments, along with the second-placed team from Auckland, qualified for the competition proper. In all, 91 teams took part in the competition, 32 from the South Island and 59 from the North Island. Note: Different sources record different numbers for the rounds of this competition, with some confusion caused by differing numbers of rounds in regional qualification.