Beatriz "Betty" Kretschmer Ries de Buccicardi (born 24 January 1928) is a Chilean sprinter.

[1] 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 gained her first South American title at the 1945 Championships, taking 100 m gold in addition to a 200 m silver.

[4] A triple followed at the 1946 South American Championships, where she topped the field in 100 m, 200 m and the long jump.

[5] Her last successes were at the 1956 South American Championships in Athletics, where she was 200 m champion and 100 m runner-up.