1899 in Argentine football saw the Argentine league reduced to 4 teams to accommodate the creation of a Second Division. Palermo and United Banks left the Association and Banfield registered to the recently created Second Division.
The championship Primera división took the format of a league of 4 teams, with each team playing the other twice. Lanús Athletic only completed 2 games, with the other 4 fixtures being awarded to their opponents. The game between Lomas and Lobos was awarded to Lobos.