Guinea-Bissau has competed in several editions of the World Aquatics Championships.
2023
Guinea-Bissau entered 1 swimmer.
Men AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRank Pedro Rogery 50 metre freestyle 30.66 116 Did not advance 100 metre freestyle 1:18.28 NR 115 Did not advance
2024
Guinea-Bissau entered 1 swimmers.
Men AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRankPedro Rogery50 metre freestyle30.63115colspan="4" rowspan="2" 100 metre freestyleDisqualified
2025
Men AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRankPedro Rogery50 m freestyle28.14108Did not advance100 m freestyle1:03.93103Did not advance
Women AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRankNadine Dju50 m freestyle53.16100Did not advance50 m breaststrokeDid not advance
References