1923 in Argentine football saw Boca Juniors win its 3rd title, the Asociación Argentina championship while San Lorenzo achieved its first title ever at the top division winning the Asociación Amateur championship.
Boca Juniors and Huracán finished with 51 points each so they had to play the playoffs to decide a champion. Palermo, which had been relegated from the Asociación Amateur, joined Asociación Argentina remaining at Primera División. Argentino de Quilmes returned to the top division after being relegated in 1918, while All Boys, Argentino de Banfield and Villa Urquiza made their debuts in Primera.
With the third match drawn, the best-of-three series was level at 1-1, meaning a fourth match - to be played to a finish - was required to determine the champion.
Argentino del Sud (promoted last year) debuted in Primera División.