|2001 Edmonton||4x400 m relay|
Claudia Marx (born 16 September 1978 in East Berlin) is a German athlete. She runs in the 400 metres and the 400 metres hurdles (which she started in 2005). She also competes in the German team in the 4 × 400 metres relay. She won the 400 metres at the German Athletics Championships in 2003 and 2004 and in the National Indoor Championships in 2005. She is 1.72 metres tall and weighs 59 kg. She currently studies sport sciences at the Humboldt University of Berlin. she came 4th in 400m hurdles.