1905 in Argentine football

The year 1905 in Argentine football saw Alumni crowning Argentine champion, winning its 5th league title in six seasons. A new team, Reformer Athletic Club from the city of Campana, registered to play the tournament.

Primera División
The 1905 championship was expanded to include 7 teams, who played in a league format, with each team playing the other twice.

Primera B

 * Champion: América

Primera C

 * Champion: Alumni III

Copa de Honor Municipalidad de Buenos Aires

 * Champion: Alumni

Tie Cup

 * Champion: 🇦🇷 Rosario AC

Copa de Honor Cusenier

 * Champion: Nacional

Argentina national team
Argentina contested its first official tournament in 1905. The squad played Uruguay for Copa Lipton on 15 August 1905. The game ended 0-0 after extra time and the trophy was awarded to Uruguay as the visiting team.

International friendlies
English team Nottingham Forest toured on Argentina that year, playing several friendly matches v. clubs and combined teams in Buenos Aires and Rosario.