| Competition: | Campeonato Nacional 1988 |
| Dates: | 9 July 1988 – 15 January 1989 |
| Winners: | Cobreloa (4th title) |
| Relegated: | Universidad de Chile Palestino |
| Matches: | 240 |
| Total Goals: | 601 |
| Continentalcup1: | 1989 Copa Libertadores |
| Continentalcup1 Qualifiers: | Cobreloa Colo-Colo (Liguilla winners) |
| League Topscorer: | Gustavo De Luca Juan José Oré (18 goals) |
| Highest Attendance: | 71,372 |
| Attendance: | 1,632,209 |
| Average Attendance: | 6,801 |
| Prevseason: | 1987 |
| Nextseason: | 1989 |
The 1988 Campeonato Nacional was Chilean football league top tier's 56th season. Cobreloa was the tournament's champion, winning its fourth title.[1]
| Name | Team | Goals | |
|---|---|---|---|
 Gustavo De Luca | Deportes La Serena | 18 | |
 Juan José Oré | Deportes Iquique | 18 |
Deportes Iquique qualified for the final due to its better League head-to-head results (2-1 & 0-0)Colo-Colo qualified for the final due to its better League head-to-head results (3-1 & 0-0)
Colo-Colo qualified for the 1989 Copa Libertadores