1966 Primera División de Chile
| Dates | 7 May 1966 – 15 January 1967 |
|---|---|
| Champions | Universidad Católica (4th title) |
| Relegated | Ferrobádminton |
| 1967 Copa Libertadores | Universidad Católica Colo-Colo |
| Matches played | 306 |
| Goals scored | 933 (3.05 per match) |
| Top goalscorer | Carlos Campos (21) Felipe Bracamonte (21) |
| Biggest home win | Universidad de Chile 8–1 Unión San Felipe (11 September) |
| Highest attendance | 77,890 Universidad Católica 3–5 Universidad de Chile (11 January 1967) |
| Total attendance | 2,751,770 |
| Average attendance | 8,992 |
← 1965 1967 → | |
The 1966 Campeonato Nacional de Fútbol Profesional, was the 34th season of top-flight football in Chile. Universidad Católica won their fourth title following a 4–2 win against Unión San Felipe on the 32nd matchday, also qualifying for the 1967 Copa Libertadores.