SK av 1909
| Full name | Sportsklubben av 1909 |
|---|---|
| Founded | 24 March 1909 |
| Ground | Dælenenga |
Sportsklubben av 1909, often shortened as Sp-09 or Sportsklubben, is a Norwegian sports club from Oslo, founded in 1909. It has sections for amateur boxing and amateur wrestling, and has had several Olympians in its ranks.