Glynnis Breytenbach (born 9 August 1960, /ˈbreɪtɛn ˈbʌx/) is a former prosecutor for the National Prosecuting Authority (NPA) of South Africa and a Member of Parliament for the Democratic Alliance (DA).

In 2017, she published a memoir, Rule of Law,[10] and in 2018 was shortlisted for the National Director of Public Prosecutions post at the NPA, but later withdrew her candidacy.

[11] In April 2012, acting National Director of Public Prosecutions Nomgcobo Jiba suspended Breytenbach from her position as a regional head at the NPA's Specialised Commercial Crime Unit (SCCU), on the basis of a complaint laid by a company called Imperial Crown Trading.

Breytenbach has claimed that she was suspended because she had pursued the prosecution of Richard Mdluli, former head of the police's Crime Intelligence Division, on fraud and corruption charges.

[18] However, after unsuccessfully challenging her subsequent transfer out of the SCCU,[19] she resigned from the NPA in January 2014,[12][20] joined the DA shortly afterwards,[21][22] and was sworn in as a Member of Parliament that May.