JL van Rensburg (born 5 August 2005) is a South African shot putter and discus thrower.

[1] He won gold in the shot put and silver in the discus at the 2023 African U20 Championships in Ndola, Zambia.

[2][3] He won a silver medal in the shot put at the 2024 World Athletics U20 Championships in Lima, Peru with a personal best throw of 20.74m.

[4][5] In October 2024, he was named Sportsman of the Year by the Eden Sports Council.

[6][7] In September 2024 he was recruited to study at Baylor University in the United States, studying mechanical engineering on a scholarship.