Julia du Plessis (born 27 May 1996) is a South African female professional high jumper. She is the 2015 African Games bronze medallist. A child prodigy, her personal best jump is 1.88 metres, achieved in March 2012 in Germiston. In the age-specific categories she went on to win the bronze medal at the 2013 World Youth Championships, the silver medal at the 2015 African Junior Championships and finished twelfth at the 2012 World Junior Championships.