AJ Coertzen

Adriaan Jacobus Van der Berg Coertzen (born 16 October 1990 in Bethlehem, South Africa) is a South African rugby union player for in the Rugby Pro D2 in France. His regular position is winger or fullback.

Youth rugby
Playing his high school rugby at Grey College in Bloemfontein, Coertzen was selected in the Free State squad that played at the Under-16 Grant Khomo Week tournament in 2006. In 2008, he was a member of the Free State's Under-18 Academy Week team. He progressed to the side that played in the 2009 Under-19 Provincial Championship and then played for the  side in the 2011 Under-21 Provincial Championship.

Free State Cheetahs
Coertzen made his first class debut in the 2011 Vodacom Cup. He was an unused substitute in their match against the in Ermelo, but made his debut the following week at home to the, coming on as a substitute during the second half of their 38–24 victory. He made his starting debut in their next match against Namibian side the in Windhoek and took just two minutes to open the scoring to set the Cheetahs on their way to a 29–13 victory. One more start followed in their next match against the, but that turned out to be his last involvement with the first team for 3 years, instead playing club and Varsity Cup rugby with the.

In August 2014, Coertzen was a surprise inclusion for the  in their opening match of the 2014 Currie Cup Premier Division season against newcomers the.

Griquas
After spending the 2015 Currie Cup qualification series on loan at Kimberley-based side – making six appearances – he signed for them on a permanent basis for the 2016 season.

Aurillac
Coertzen moved to French Pro D2 side after the 2018 Currie Cup Premier Division.