Petrus Johannes "Pieter" Groenewald (born 27 August 1955) is a South African politician who is currently serving as Minister of Correctional Services since July 2024.

Groenewald co-founded the Freedom Front in 1994, and served as a Member of the National Assembly until his election to the North West Provincial Legislature in 1999.

[7] Groenewald has held various leadership positions in the Freedom Front Plus, such as Parliamentary Leader and Federal Chairperson from 11 August 2011 until 12 November 2016.

[7] On 12 November 2016, Groenewald was elected Leader of the Freedom Front Plus, succeeding Pieter Mulder, who retired from the position.

Additionally, the party won representation in eight of the nine provincial legislatures and largely improved its showing in the provinces of Gauteng and the North West.