Guyana is set to compete at the 2023 World Aquatics Championships in Fukuoka, Japan from 14 to 30 July.
Swimming
Guyana entered 3 swimmers.
Men AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRank Raekwon Noel 400 metre freestyle 4:05.70 42 colspan="2" Did not advance 200 metre butterfly 2:05.65 33 Did not advance Leon Seaton 50 metre freestyle 24.82 83 Did not advance 100 metre freestyle 53.75 86 Did not advance
Women AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRank Aleka Persaud 50 metre freestyle 27.98 63 Did not advance 100 metre freestyle 1:00.67 49 Did not advance
References