| Athletics at the X CAC Games | |
|---|---|
| Dates | 16–22 June 1966 |
| Host city | |
| Venue | Estadio Municipal Hiram Bithorn |
| Events | 32 |
| Participation | 338 athletes from 17 nations |
The athletics competition in the 1966 Central American and Caribbean Games were held at the Estadio Municipal Hiram Bithorn in San Juan, Puerto Rico between 16 and 22 June.
It was the first edition to hold women's 200 metres and shot put as well as men's 10,000 metres walk. It was also the last to hold men's pentathlon, which was to be replaced with the decathlon from the next edition on.
| Rank | Nation | Gold | Silver | Bronze | Total |
|---|---|---|---|---|---|
| 1 | 9 | 11 | 12 | 32 | |
| 2 | 7 | 5 | 4 | 16 | |
| 3 | 4 | 2 | 3 | 9 | |
| 4 | 4 | 2 | 1 | 7 | |
| 5 | 3 | 3 | 4 | 10 | |
| 6 | 2 | 5 | 1 | 8 | |
| 7 | 1 | 1 | 1 | 3 | |
| 8 | 1 | 0 | 0 | 1 | |
| 1 | 0 | 0 | 1 | ||
| 10 | 0 | 2 | 5 | 7 | |
| 11 | 0 | 1 | 1 | 2 | |
| Totals (11 entries) | 32 | 32 | 32 | 96 | |