Gideon Koegelenberg (born 25 November 1994) is a South African rugby union player for the Mitsubishi Dynaboars. He usually plays as a lock. In the past he also played for Australian Super Rugby franchise and for the in United Rugby Championship..
Koegelenberg was born in Wellington and played for the at youth level. He earned inclusion in the 2012 South Africa Schools squad and made appearances against France and England.
He then joined the Academy, where he made a single appearances against former side . A knee injury hampered his progress at the Durban-based side, ruling him out of the entire 2014 season. He made five appearances for the in the team's title-winning 2015 Varsity Shield season.
Koegelenberg joined the in 2015, where he made eleven appearances in the 2015 Under-21 Provincial Championship Group A, scoring one try against .
He then moved to Italy to join Pro12 side Zebre during the 2015âÂÂ16 season. He played five matches during the 2015âÂÂ16 season, and a further 12 in the 2016âÂÂ17 season, starting nine matches and receiving three yellow cards.
At the end of the 2017 season, Koegelenberg left Zebre to return to South Africa, and to former Super Rugby side the , signing a two-year deal with the Durban-based franchise in order to play also in the Currie Cup and the in the Rugby Challenge.
Koegelenberg signed for Benetton Rugby in May 2023 ahead of the 2023âÂÂ24 United Rugby Championship. He made his debut in Round 1 of the 2023âÂÂ24 season against the . He played with Benetton in the United Rugby Championship until 2025.