Entries confirmed:
One male and one female marathon swimmer from the Host nation China automatically qualify.
Men:
4x100m freestyle relay: USA, Italy, France, South Africa, Australia, Sweden, Cananda, Brazil;
4x200m freestyle relay: USA, Australia, Cananda, Great Britain, Italy, Russia, Japan, Poland;
4x100m medley relay: Australia, Japan, Russia, South Africa, Great Britain, Italy, France, Romania;
Women:
4x100m freestyle relay: Australia, USA, Netherlands, Germany, Sweden, France, China, Great Britain;
4x200m freestyle relay: USA, Germany, France, Australia, Great Britain, Japan, Sweden, Netherlands;
4x100m medley relay: Australia, USA, China, Great Britain, Russia, Japan, Germany, Sweden;
