Margrith Bigler-Eggenberger (14 March 1933 – 5 September 2022) was a Swiss jurist, university lecturer, judge and a member of the Social Democratic Party (SP).

Bigler-Eggenberger was born on 14 March 1933 in Uzwil, Canton St.Gallen,[1] and grew up in a household where the perception that women and man have equal rights in a democracy was predominant.

[3][1] Her dissertation of 1959 was inspired by her experiences while working in the detention facilities St. Jakob and Saxerriet[4] and she obtained her license as a lawyer in St. Gallen in 1961.

[3] She was a member of the board of the National Accident Insurance Fund (SUVA) and for the Women's Centre [de] she established and from 1968 onwards, as a member of the board of the Alliance of Women Organizations (Alliance F), she was involved in the commission for the National Pension System of Switzerland (AHV).

[4] Her candidacy to the Federal Supreme Court one year after women gained their right to vote did not come through well in the Swiss Parliament as several documents were withheld and she was presented as a trainee and housewife.