| Competition: | Campeonato Nacional 1971 |
| Dates: | 10 April 1971 – 22 December 1971 |
| Winners: | Unión San Felipe (1st title) |
| Relegated: | Audax Italiano |
| Matches: | 307 |
| Total Goals: | 853 |
| Continentalcup1: | 1972 Copa Libertadores |
| Continentalcup1 Qualifiers: | Unión San Felipe Universidad de Chile |
| League Topscorer: | Eladio Zárate (25 goals) |
| Highest Attendance: | 67,456 |
| Attendance: | 3,112,958 |
| Average Attendance: | 10,140 |
| Prevseason: | 1970 |
| Nextseason: | 1972 |
The 1971 Campeonato Nacional was Primera División de Chile’s 39th season since its foundation in 1933. Unión San Felipe was the tournament's champion, winning its first ever league title at top-level. By doing this, San Felipe became the only Chilean team to win the second division one year, and the first division tournament the next year.[1] [2]
| Lota Schwager | 2–1 | Audax Italiano |
|---|
| Rank | Name | Club | Goals | ||
|---|---|---|---|---|---|
| align=center | 1 | Eladio Zárate | Universidad de Chile | 25 | |
| align=center | 2 | Fernando Espinoza | Magallanes | 24 | |
| align=center | 3 | Julio Crisosto | Unión Española | 21 | |
| align=center | 4 | Sergio Ahumada | Colo-Colo | 17 | |
| align=center | 5 | Manuel Núñez | Unión San Felipe | 15 |