Elke Decker (born 23 February 1957) is a German female former track and field sprinter who competed in the 400 metres for West Germany. Born in Cologne, her greatest achievement was a gold medal at the 1980 European Athletics Indoor Championships. She also represented her country individually at the 1978 European Athletics Championships and 1982 European Athletics Indoor Championships, as well as in the 4 × 400 metres relay team at the 1979 IAAF World Cup.