|1909 VFL Premiership season|
|Minor premiers||South Melbourne|
(1st minor premiership)
|Leading Goalkicker Medallist||Dick Lee (Collingwood)|
The 1909 VFL season was the 13th season of the Victorian Football League (VFL), the highest level senior Australian rules football competition in Victoria. The season featured ten clubs, ran from 1 May until 2 October, and comprised an 18-game home-and-away season followed by a finals series featuring the top four clubs.
The premiership was won by the South Melbourne Football Club for the first time, after it defeated Carlton by two points in the 1909 VFL Grand Final.
In 1909, the VFL competition consisted of ten teams of 18 on-the-field players each, with no reserves, although any of the 18 players who had left the playing field for any reason could later resume their place on the field at any time during the match.
Each team played each other twice in a home-and-away season of 18 rounds.
Once the 18 round home-and-away season had finished, the 1909 VFL premiers were determined by the specific format and conventions of the amended Argus system.
|1||South Melbourne (P)||18||14||4||0||1162||688||168.9||56||Finals|
All of the 1909 finals were played at the MCG so the home team in the Semi Finals and Preliminary Final is purely the higher ranked team from the ladder but in the Grand Final the home team was the team that won the Preliminary Final.
Main article: 1909 VFL Grand Final
This was South Melbourne's first VFL premiership after finishing runner-up in 1899 and 1907.