Katrin Meissner (German: Katrin Meißner) (born 17 January 1973 in Berlin) is a former freestyle swimmer from East Germany, who won three medals at the 1988 Summer Olympics in Seoul, South Korea. The fifteen-year-old triumphed with the GDR women's relay team in the 4×100 m medley and in the 4×100 m freestyle, and finished third in the 50 m freestyle.