Lithuania competed at the 1998 World Aquatics Championships in Perth, Western Australia.

Swimming

2 swimmers represented Lithuania:

Men AthleteEventHeatFinalTimeRankTimeRankDarius Grigalionis100 m backstroke56.7817did not advance200 m backstroke2:07.3923did not advanceArūnas Savickas100 m freestyle52.9446did not advance100 m backstroke57.1023did not advance200 m backstroke2:02.9213 Q2:03.74 14

References