Gabriele Wetzko (later Hartung then Frischke then Kühne , born 24 August 1954 in Leipzig) is a former German swimmer. Born in Leipzig, East Germany, she competed for East Germany in the 1968 and 1972 Summer Olympics. At the 1968 Olympics she competed in the 200 m, 400 m and 4 × 100 m freestyle events. The 4 × 100 m freestyle East German team of Gabriele Wetzko, Uta Schmuck, Gabriele Perthes and Roswitha Krause won a silver medal. At the 1972 Olympics she competed in the 100 m freestyle, 4×100 m medley relay and 4×100 m freestyle relay, where her team, once again, won the silver medal.