Karen König (born c. 1969) is a retired German freestyle swimmer who won two gold medals at the 1985 European Aquatics Championships as part of the East Germany relay teams. She missed the 1984 Summer Olympics in Los Angeles that were boycotted by East Germany, and instead competed at the Friendship Games, where she won a gold medal in the 4 × 100 m freestyle relay, setting a new world record. She was awarded the Patriotic Order of Merit in Gold in East Germany.