| Iaaf: | SLO |
| Fedname: | Atletska Zveza Slovenije |
| Year: | 2015 |
| Games: | World Championships in Athletics |
| Location: | Beijing |
| Competitors: | 8 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Previous: | 2013 |
| Next: | 2017 |
Slovenia competed at the 2015 World Championships in Athletics in Beijing, China, from 22–30 August 2015.
(q – qualified, NM – no mark, SB – season best)
| Athlete | Event | Heat | Semifinal | Final | |||||
|---|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | ||||
| style=text-align:left | Luka Janežič | style=text-align:left | 400 metres | 45.28 NR | 6 | colspan="4" | |||
| style=text-align:left | Žan Rudolf | style=text-align:left | 800 metres | 1:47.24 | 6 | ||||
| Athlete | Event | Heat | Semifinal | Final | |||
|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | ||
| style=text-align:left | Maja Mihalinec | style=text-align:left | 100 metres | 11.42 | 4 | colspan=4 | |
| style=text-align:left | Sabina Veit | style=text-align:left rowspan=2 | 200 metres | 23.18 | 4 | colspan=4 | |
| style=text-align:left | Maja Mihalinec | 23.05 PB | 4 q | 23.04 PB | 8 | colspan=2 | |
| style=text-align:left | Maruša Mišmaš | style=text-align:left | 3000 metres steeplechase | 9:37.73 | 7 | ||
| Athlete | Event | Qualification | Final | |||
|---|---|---|---|---|---|---|
| Distance | Position | Distance | Position | |||
| style=text-align:left | Tina Šutej | style=text-align:left | Pole vault | NM | colspan=2 | |
| style=text-align:left | Martina Ratej | style=text-align:left | Javelin throw | 59.76 | 23 | |