| Year: | 2003 |
| Type: | ISAF Sailing World Championships |
| Edition: | 1st |
| Venue: |  Cádiz, Spain |
| Dates: | 3–24 September |
| Titles: | 11 |
| Sailors: | 1450 |
| Nations: | 71 |
| Qualify: | 2004 Summer Olympics |
| Next: | 2007 |
2003 ISAF Sailing World Championships was the first edition of the ISAF Sailing World Championships and was held in Cádiz, Spain from 11 September to 24 September.[1]
The venue for the 2003 ISAF Sailing World Championships was Cádiz with three marinas: El Puerto de Santa María for Mistral, Finn, Yngling, Europe, Star, Tornado and 49er, Cádiz for Laser and Rota for 470.[2] Racing was held on nine race areas off Cádiz.[3]
The following events were open for entries:
| Event | Equipment | Max. entries | |
|---|---|---|---|
| Men's one-person dinghy | 90 | ||
| Men's two-person dinghy | 120 | ||
| Men's keelboat | 120 | ||
| Men's windsurfer | 120 | ||
| Open one-person dinghy | 160 | ||
| Open two-person dinghy | 120 | ||
| Open multihull | 80 | ||
| Women's one-person dinghy | 120 | ||
| Women's two-person dinghy | 80 | ||
| Women's keelboat | 80 | ||
| Women's windsurfer | 80 |
| Sailor | ||
|---|---|---|
| align=left bgcolor=#F7F6A8 |  Przemyslaw Miarczynski | |
| align=left bgcolor=#DCE5E5 | Nikolaos Kaklamanakis | |
| align=left bgcolor=#FFDAB9 |  Gal Fridman | |
| 4 | João Rodrigues | |
| 5 |  Julien Bontemps | |
| 6 |  Nick Dempsey | |
| 7 | Jon-Paul Tobin | |
| 8 | Fabrice Hassen | |
| 9 | Joeri van Dijk | |
| 10 | Alexandre Guyader |
| Sailor | ||
|---|---|---|
| align=left bgcolor=#F7F6A8 | Lee Korzits | |
| align=left bgcolor=#DCE5E5 |  Barbara Kendall | |
| align=left bgcolor=#FFDAB9 | Faustine Merret | |
| 4 |  Jessica Crisp | |
| 5 | Jeanne Mailhos | |
| 6 |  Mingshuang Lai | |
| 7 | Allison Shreeve | |
| 8 |  Sigrid Rondelez | |
| 9 |  Alessandra Sensini | |
| 10 | Zofia Klepacka |
