Mezue ahịrịokwu na-esonụ: Karen Tracey van Wirdum (amụrụ 9 Eprel 1971) bụ onye bụbu onye na-egwu mmiri n'efu si Australia, onye sooro asọmpi atọ n'usoro n'oge Olimpik n'oge ọkọchị maka obodo ya, malite na 1988. O ritere ihe nrite ọla edo na 100 mita freestyle na 1990 Commonwealth Games na na 50 mita freestyle na
Egwuregwu Commonwealth nke afọ 1994.