Luxembourg competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
High diving
Luxembourg qualified one male high diver.
AthleteEventPointsRankAlain KohlMen's high diving236.3013
Swimming
Luxembourg entered five swimmers.
Men AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRankPit Brandenburger200 m freestyle1:50.1038did not advance800 m freestyle8:23.9935colspan=2 did not advanceJulien Henx50 m freestyle22.7142did not advance100 m freestyle50.4352did not advance50 m butterfly23.91=28did not advanceRaphaël Stacchiotti200 m individual medley1:59.6214 Q2:00.2616did not advance400 m individual medley4:27.8028colspan=2 did not advance
Women AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRankJulie Meynen50 m freestyle25.0716 Q24.7812did not advance100 m freestyle54.4417did not advanceMonique Olivier200 m freestyle2:01.9628did not advance400 m freestyle4:14.2922colspan=2 did not advance
Mixed AthleteEventHeatFinalTimeRankTimeRankJulien HenxRaphaël StacchiottiJulie MeynenMonique Olivier4×100 m freestyle relay3:33.5518did not advance
References