Ruth Dreifuss, Swiss journalist and politician, 86th President of the Swiss Confederation
Ruth Dreifuss (born 9 January 1940 in St. Gallen) is a Swiss politician affiliated with the Social Democratic Party. She was a member of the Swiss Federal Council from 1993 to 2002, representing the Canton of Geneva.

She was elected to the Swiss Federal Council on 10 March 1993 as the 100th member elected since the foundation of the federal state.