| Competition: | Campeonato Nacional Copa Banco del Estado |
| Dates: | 4 April – 13 December 1998 |
| Winners: | Colo-Colo (22nd title) |
| Relegated: | Provincial Osorno (Rel. Play-off) Santiago Wanderers Deportes Temuco |
| Matches: | 239 |
| Total Goals: | 695 |
| Continentalcup1: | 1999 Copa Libertadores |
| Continentalcup1 Qualifiers: | Colo-Colo Universidad Católica (Liguilla winners) |
| Continentalcup2: | 1998 Copa CONMEBOL |
| Continentalcup2 Qualifiers: | Audax Italiano (Copa runners-up) |
| Continentalcup3: | 1999 Copa CONMEBOL |
| Continentalcup3 Qualifiers: | Deportes Concepción (Liguilla Semifinals) |
| League Topscorer: | Pedro González (23 goals) |
| Attendance: | 1,635,154 |
| Average Attendance: | 6,842 |
| Prevseason: | 1997 |
| Nextseason: | 1999 |
The 1998 Campeonato Nacional, known as Campeonato Nacional Copa Banco del Estado 1998 for sponsorship purposes, was the 67th season of top-flight football in Chile. Colo-Colo won their 22nd title following a 2–1 home win against Deportes Iquique on 13 December. Universidad Católica also qualified for the next Copa Libertadores as Liguilla winners.
| Pos | Name | Team | Goals | |
|---|---|---|---|---|
| 1 | Pedro González | Universidad de Chile | 23 | |
| 2 | Marco Antonio Figueroa | Universidad Católica | 16 | |
| 3 | Héctor Tapia | Colo-Colo | 15 | |
| 4 | Marcelo Corrales | Palestino | 14 | |
| 5 | Héctor Vega | Deportes Iquique | 13 |
Universidad Católica qualified for the 1999 Copa Libertadores
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