Sailing at the 2012 Summer Olympics – Qualification
75% of the qualification places for Sailing at the 2012 Summer Olympics were awarded based on results at the 2011 ISAF Sailing World Championships, and the remaining 25% at the World Championships for each boat class.
Qualification timeline
Qualification progress
| Event | 2011 ISAF World Championships | 2012 Class Championships | Host Country | Total |
| Men | 2011 ISAF World Championships | 2012 Class Championships | Host Country | Total |
| Windsurfer | 28 | 9 | 38 | |
| One-Person Dinghy | 35 | 12 | 48 | |
| Heavyweight One-Person Dinghy | 18 | 6 | 25 | |
| Two-Person Dinghy | 19 | 7 | 27 | |
| Skiff | 14 | 5 | 20 | |
| Keelboat | 11 | 4 | 16 | |
| Event | 2011 ISAF World Championships | 2012 Class Championships | Host Country | Total |
| Women | 2011 ISAF World Championships | 2012 Class Championships | Host Country | Total |
| Windsurfer | 20 | 7 | 28 | |
| One-Person Dinghy | 29 | 9 | 39 | |
| Two-Person Dinghy | 14 | 5 | 20 | |
| Match Racing | 8 | 3 | 12 |