Betty (also called Berthy or Baty) Halff-Epstein, née Epstein (born 3 January 1905 in Zurich, died 31 May 1991 in Basel) was a Swiss entrepreneur and pioneer of the second wave of the women's movement. During the Second World War, she and her brother Max Epstein helped persecuted Jews to emigrate to the USA. From Basel, she also provided interned prisoners in the Camp de Gurs (F) with food and utensils (see section on the Second World War). After the war she became involved with WIZO (see section WIZO).