Nadine Bernadette Neumann (born 3 December 1975) is an Australian former breaststroke swimmer. She overcame chronic fatigue syndrome at the age of 15, and was denied an Olympic birth in Barcelona because of a broken neck. She competed for Australia at the 1996 Summer Olympics in Atlanta, where she finished in sixth position, clocking 2:28.34 in the final of the 200-metre breaststroke. She captained the Australian Swimming Team at the 1998 Commonwealth Games and 1999 Pan Pacific Championships, competing in the 400-metre Individual Medley, 200-metre Butterfly and 800-metre Freestyle events as well as the breaststroke.