The 1918 season of the Paraguayan Primera División, the top category of Paraguayan football, was played by 9 teams. The national champions were Cerro Porteño.
Results
Standings
National title play-offs
The original playoff match was abandoned during the first half of extra time with the score at 1–2. Resumption of the match was further delayed to 12 January 1919 due to the Great Influenza epidemic.
Relegation play-off
References