Jacomina 'Jakkie' Cilliers, born on October 30, 2000, is a South African international rugby union and rugby sevens player. Describing herself as a "farm girl" from the Free State, she plays primarily as a centre or winger.

Cilliers plays for the Bulls Daisies, with whom she has won three national titles consecutively. In 2025, she was voted the best player in the South African Championship and finished as the top point scorer with 127 points.