Cilliers Brink was elected as the Executive Mayor of Tshwane on 28 March 2023.
He was born in Springs on 12 June 1987. He grew up in Phalaborwa, Limpopo and remained in Limpopo until the completion of matric at Kingfisher High School in 2005.
In 2006 he enrolled for his LLB at the University of Pretoria (UP). It was at UP that Brink became involved in politics, becoming a member of the Democratic Alliance Student Organisation (DASO) in 2009.
He became chairperson of the Democratic Alliance Youth (DAY) in Tshwane in 2010 and a councillor in the City of Tshwane municipality in 2011 at the age of 24.
In 2012 he obtained his LLB degree from UP and in 2013 went on to obtain his Practical Legal Training Certificate from the LSSA Practical Law School.
In 2016 Brink became the MMC for Corporate and Shared Services in the City of Tshwane. He held this position until May 2019, when he was sworn in as a Member of Parliament (MP). As an MP he served on the Portfolio of Cooperative Governance and Traditional Affairs.
In September 2022 he became national spokesperson for the Democratic Alliance, a position he held until he was elected as the Executive Mayor of Tshwane.