| Competition: | Uruguayan Primera División |
| Season: | 1909 (9th) |
| Winners: | Montevideo Wanderers |
| Matches: | 110 |
| Total Goals: | 343 |
| Prevseason: | 1908 |
| Nextseason: | 1910 |
The Uruguayan Championship 1909 was the ninth official championship of Uruguayan football history.
The tournament consisted of a two-wheel championship of all against all. It involved eleven teams, and the champion was Montevideo Wanderers.
| Team | City | Stadium | Capacity | Foundation | Seasons | Consecutive seasons | Titles | 1908 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bristol | Montevideo | 1 | 1 | align=center | - | 5th | ||||||
| CURCC | Montevideo | 28 September 1891 | 8 | 8 | 4 | 7th | ||||||
| Central | Montevideo | 5 January 1905 | align=center | - | align=center | - | align=center | - | align=center | - | ||
| Colón | Montevideo | 1907 | align=center | - | align=center | - | align=center | - | align=center | - | ||
| Dublin | Montevideo | 1 | 1 | align=center | - | 4th | ||||||
| French | Montevideo | 1 | 1 | align=center | - | 9th | ||||||
| Montevideo | Montevideo | 1896 | 8 | 8 | align=center | - | 8th | |||||
| Nacional | Montevideo | Gran Parque Central | 7,000 | 14 May 1899 | 7 | 7 | 2 | 3rd | ||||
| Oriental | Montevideo | align=center | - | align=center | - | align=center | - | align=center | - | |||
| River Plate | Montevideo | 1897 | 2 | 2 | 1 | 1st | ||||||
| Montevideo Wanderers | Montevideo | 15 August 1902 | 5 | 5 | 1 | 2nd |
Promoted for next season: Libertad.