1980 Primera División de Chile
| Dates | 18 April 1980 – 7 December 1980 |
|---|---|
| Champions | Cobreloa (1st title) |
| Relegated | Green Cross Temuco Santiago Wanderers Lota Schwager Coquimbo Unido Aviación (Promotion Lig.) |
| 1981 Copa Libertadores | Cobreloa Universidad de Chile (Liguilla winners) |
| Matches played | 306 |
| Goals scored | 783 (2.56 per match) |
| Top goalscorer | Carlos Caszely (26 goals) |
| Biggest home win | Colo-Colo 8–0 Naval (8 November) |
| Highest attendance | 76,556 Universidad de Chile 2–4 Colo-Colo (27 September) |
| Total attendance | 2,317,257 |
| Average attendance | 7,598 |
← 1979 1981 → | |
The 1980 Campeonato Nacional was Chilean football top tier's 48th season. Cobreloa was the tournament's champion, winning its first ever title, and became the first team from Northern Chile to become national champions.