Rosa "Ossi" Reichert (25 July 1925 – 16 July 2006) was a German Alpine skier. She was born in Sonthofen, Bayern, Germany.
Her greatest victory was in the 1956 Winter Olympics giant slalom at Cortina d'Ampezzo, Germany's sole gold medal at these games (and Germany's first gold medal in Olympics after the Second World War). After having seriously injured an ankle in 1954, she was not expected to do well at these games. She also drew the #1 start position for the one-run event. Putzi Frandl, who won the Silver medal in the event, once stated that, "Ossi was disappointed to draw #1 as that was usually not a good position. The first racer down the course usually has to scrape off a bit of snow, which slows you down. But Ossi had a great run and overcame that difficulty."
She also participated in the 1952 Winter Olympics in Oslo, where she won a silver medal in the slalom, beating her fellow German Annemarie Buchner for the bronze medal.
Reichert also was German champion three time. She retired to run the hotel of her parents in her home town the Allgäu region.