1978 Torneo Descentralizado
| Season | 1978 | 
|---|---|
| Dates | 8 July 1978 – 21 January 1979  | 
| Champions | Alianza Lima | 
| Relegated | Defensor Lima | 
| Copa Libertadores | Alianza Lima Universitario  | 
← 1977  1979 →   | |
The 1978 Torneo Descentralizado, the top category of Peruvian football (soccer), was played by 16 teams. The national champion was Alianza Lima.
The season was divided into 2 stages. A Preliminary Tournament contested in two groups; this was a friendly tournament to keep teams occupied as the National Team was preparing for the 1978 World Cup Finals. The second stage was the Decentralized (league tournament); the top 2 qualified for Copa Libertadores and the last team was relegated.