| Iaaf: | DOM |
| Flagcaption: | Flag of the Dominican Republic |
| Games Link: | 2017 World Championships in Athletics |
| Year: | 2017 |
| Games: | World Championships in Athletics |
| Fedname: | Athletics Federation of the Dominican Republic |
| Location: | London, United Kingdom |
| Date: | 4–13 August 2017 |
| Competitors: | 3 |
| Competitors Men: | 2 |
| Competitors Women: | 1 |
| Events: | 3 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
The Dominican Republic competed at the 2017 World Championships in Athletics in London, Great Britain, from 4–13 August 2017.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | |||
| Luguelín Santos | 400 metres | 45.73 | 24 | colspan=4 | ||||
| Juander Santos | 400 metres hurdles | 49.19 | 2 Q | 48.59 | 3 Q | 49.04 | 6 | |