| Competition: | Campeonato Nacional 1980 |
| Dates: | 18 April 1980 – 7 December 1980 |
| Winners: | Cobreloa (1st title) |
| Relegated: | Green Cross Temuco Santiago Wanderers Lota Schwager Coquimbo Unido Aviación (Promotion Lig.) |
| Matches: | 306 |
| Total Goals: | 783 |
| Continentalcup1: | 1981 Copa Libertadores |
| Continentalcup1 Qualifiers: | Cobreloa Universidad de Chile (Liguilla winners) |
| League Topscorer: | Carlos Caszely (26 goals) |
| Highest Attendance: | 76,556 |
| Attendance: | 2,317,257 |
| Average Attendance: | 7,598 |
| Prevseason: | 1979 |
| Nextseason: | 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.[1]
| Name | Team | Goals | |
|---|---|---|---|
| Carlos Caszely | Colo-Colo | 26 | |
| Víctor Estay | Unión Española | 19 | |
| Leonardo Zamora | Everton | 18 | |
| Miguel Ángel Neira | O'Higgins | 16 |
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Universidad de Chile qualified to 1981 Copa Libertadores