Juan Leon de Jongh (born 15 April 1988) is a South African former professional rugby union footballer.

He was one of the stars of Vodacom WP's ABSA Currie Cup campaign in 2009 and he made his debut against the Sharks.

He became the first choice inside centre for the Stormers in the 2010 Super 14 season after the departure of stalwart and captain, Jean de Villiers.

De Jongh was a member of the South African Sevens team that won a bronze medal at the 2016 Summer Olympics.

In May 2017 it was announced he would be joining Aviva Premiership side Wasps for the 2017/18 season.