| Tournament information | |
|---|---|
| Dates | October 27–30 |
| Location | Mexico City, Mexico |
| Course(s) | Club de Golf Mexico |
| Format | 72 holes stroke play |
| Statistics | |
| Par | 72 |
| Length | 7,125 yards (6,515 m) |
| Field | 32 teams 128 players |
| Champion | |
 AustraliaHarry Berwick, Phil Billings, Kevin Donohoe & Kevin Hartley | |
| 877 (+13) | |
| Location map | |
  Club de Golf Mexico Location in Mexico  Club de Golf Mexico Location in Greater Mexico City | |
The 1966 Eisenhower Trophy took place October 27 to 30 at the Club de Golf Mexico in Mexico City, Mexico. It was the fifth World Amateur Team Championship for the Eisenhower Trophy. The tournament was a 72-hole stroke play team event with 32 four-man teams. The best three scores for each round counted towards the team total.
Australia won the Eisenhower Trophy for the second time, finishing two strokes ahead of the silver medalists, United States. Great Britain and Ireland finished four strokes behind the United States and took the bronze medal while South Africa finished fourth. Ronnie Shade, representing Great Britain and Ireland, was the leading individual with a score of 283, 5 under par, seven strokes better than Patrick Cros from France.