| Iaaf: | BAR |
| Flagcaption: | Flag of Barbados |
| Games Link: | 2017 World Championships in Athletics |
| Year: | 2017 |
| Games: | World Championships in Athletics |
| Fedname: | Athletics Association of Barbados |
| Location: | London, United Kingdom |
| Date: | 4–13 August 2017 |
| Competitors: | 7 |
| Competitors Men: | 5 |
| Competitors Women: | 2 |
| Events: | 6 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | |
| Previous: | 2015 |
| Next: | 2019 |
Barbados competed at the 2017 World Championships in Athletics in London, United Kingdom, 4–13 August 2017.
| Athlete | Event | Preliminaries | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | Result | Rank | ||
| Mario Burke | align=left rowspan=2 | 100 metres | 10.22 | 3 Q | 10.42 | 39 | colspan=4 rowspan=2 | ||
| Ramon Gittens | 10.25 | 5 Q | 10.24 | 24 | |||||
| Burkheart Ellis | 200 metres | 20.99 | 40 | colspan=4 | |||||
| Shane Brathwaite | 110 metres hurdles | 13.39 | 10 Q | 13.26 | 7 Q | 13.32 | 5 | ||
| Levi Cadogan Ramon Gittens Shane Brathwaite Mario Burke | 4 × 100 metres relay | 39.19 | 14 | ||||||
| Athlete | Event | Heat | Semifinal | Final | |||
|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | ||
| Sada Williams | 200 metres | 23.55 | 30 | colspan=4 | |||
| 400 metres hurdles | 58.82 | 37 | |||||