Beatriz "Betty" Kretschmer Ries de Buccicardi (born 24 January 1928) is a Chilean sprinter. She competed in the heats only at the 1948 Summer Olympics, running in the women's 100 metres, 200 metres and relay. She was the long jump gold medallist and 4 × 100 metres relay silver medallist at the 1951 Pan American Games and returned four years later to win a further bronze medal with the Chilean relay team. She also placed fourth in the 200 m at the 1951 Games.