Lebanon participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 to 18 October 2018.

Fencing

Lebanon was given a quota to compete by the tripartite committee.

Girls' Épée - 1 quota

Rowing

Lebanon was given a tripartite invitation to compete.

Girls' single sculls - 1 athlete

Swimming

Boys AthleteEventHeatsSemifinalsFinalTimeRankTimeRankTimeRankRamy Ghaziri100 metre backstroke58.2721 did not advance

References