Kirsten Emmelmann (Siemon; born 19 April 1961 in Warnemünde, Bezirk Rostock) is a German former track and field athlete who represented East Germany in the 1980s in the 400 meter sprint. Her biggest success came as a member of the 4 × 400 meter relay: in 1987 she was world champion, and at the 1988 Summer Olympics her team was third. Her biggest individual success came at the World athletics championship in 1987 when she was third.
Emmelmann represented sport club Empor Rostock (trainer Wolfgang Meier) and after she got married she went to sport club Magdeburg (trainer Klaus Wübbenhorst). During her sporting career she was 1.73 meters tall and weighed 63 kilograms. She was married in 1984 to Frank Emmelmann, a 100-meter sprinter. After the end of her career she worked in a sporting goods store.