The 2000 LEN European Championships were held Monday 3 July to Sunday 9 July 2000 in Helsinki, Finland. Competition was swum in the 50 m, long course pool at the . The 25th edition of the event was organised by the LEN less than three months prior to the Summer Olympics in Sydney, Australia. The championships included the aquatic disciplines of Swimming (long course), Open Water Swimming, Diving, and Synchronised swimming.