Antonie Matthys Nortje (born 2 February 2002) is a South African sprinter who specializes in the 400 metres.

He grew up in the small town of Bronkhorstspruit after which attending Hoërskool Garsfontein for his high school education, where he developed a passion for athletics.

His performance qualified him for the West Regionals, where he won both his Preliminary and Quarterfinal races, advancing to the 2024 NCAA Championships.

[5] He ran the third leg in the final as the South African team won silver and guaranteed a place at the 2024 Paris Olympics.

[6][7] In June 2024, he was selected for the South African team for the 2024 Paris Olympics where, as part of the 4×400m relay, he qualified for the final and placed 5th overall while setting a new National Record of 2:58:12.