| Iaaf: | SLO |
| Fedname: | Athletics Federation of Slovenia |
| Year: | 2003 |
| Games: | World Athletics Championships |
| Location: | Paris |
| Competitors: | 13 (6 men and 7 women) |
| Events: | 12 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | |
| Previous: | 2001 |
| Next: | 2005 |
| Website: | (in Slovenian) |
Slovenia competed at the 2003 World Championships in Athletics which were held from 23 to 31 August 2003 in the Stade de France in Saint-Denis, France. The country was represented by 13 athletes, six men and seven women.[1]
| Athlete | Event | Heats | Quarterfinals | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | Rank | |||
| style=text-align:left | Matic Osovnikar | style=text-align:left | 100m | 10.31 | 3 | 10.35 | 7 | colspan=3 | |
| style=text-align:left | Roman Kejžar | style=text-align:left | Marathon | 2:24:20 | 59 | ||||
| style=text-align:left | Boštjan Buč | style=text-align:left | 3000m steeplechase | 8:22.89 | 5 | ||||
| Athlete | Event | Qualification | Final | |||||
|---|---|---|---|---|---|---|---|---|
| Distance | Position | Distance | Position | |||||
| style=text-align:left | Rožle Prezelj | style=text-align:left | High Jump | 2.20 | 15 Group A | colspan=2 | ||
| style=text-align:left | Miran Vodovnik | style=text-align:left | Shot put | 19.23 | 10 Group B | colspan=2 | ||
| style=text-align:left | Primož Kozmus | style=text-align:left | Hammer Throw | 78.10 | 4 Group A Q | 79.68 | 5 | |
| Athlete | Event | Heat | Quarterfinals | Semifinal | Final | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | Rank | ||||
| style=text-align:left | Merlene Ottey | style=text-align:left | 100m | 11.26 | 1 Q | 11.31 | 2 Q | 11.26 | 4 | colspan=1 |
| style=text-align:left | Merlene Ottey | style=text-align:left | 200m | 23.24 | 5 q | 23.22 | 5 | colspan=3 | ||
| style=text-align:left | Jolanda Čeplak | style=text-align:left | 800m | Did Not Start | - | colspan=3 | ||||
| style=text-align:left | Brigita Langerholc | style=text-align:left | 800m | 2:01.55 | 7 q | 2:01.58 | 6 | colspan=1 | ||
| style=text-align:left | Jolanda Čeplak | style=text-align:left | 1500m | 4:11.26 | 5 Q | 4:05.84 | 4 Q | 4:14.18 | 12 | |
| style=text-align:left | Helena Javornik | style=text-align:left | 10,000m | 32:01.57 | 18 | |||||
| style=text-align:left | • Alenka Bikar • Kristina Žumer • Maja Nose • Merlene Ottey | style=text-align:left | 4 × 100 m relay | DQ | - | |||||