Dominican Republic competed at the 2015 World Championships in Athletics in Beijing, China, from 22 to 30 August 2015.

Results (q – qualified, NM – no mark, SB – season best)

Men

AthleteEventHeatsSemifinalsFinalTimeRankTimeRankTimeRankYancarlos Martínez100 metres10.1928did not advance200 metres20.3419 Q20.3114did not advanceLuguelín Santos400 metres44.6211 Q44.26 NR3 Q 44.11 NR4 Gustavo Cuesta45.5935did not advanceGustavo CuestaJuander SantosLuguelín SantosYon Soriano4 × 400 metres relay3:00.15 NR10colspan=2 did not advance

Women

AthleteEventHeatsSemifinalsFinalTimeRankTimeRankTimeRankLaVonne Idlette100 metres hurdles13.7033did not advance

References