Jonkershoek Nature Reserve is a nature reserve located approximately 10 km south-east of the town of Stellenbosch in the Western Cape province of South Africa. It covers an area of around 110 square kilometers. The name Jonkershoek originated from the 17th century owner of one of the freeholds that Simon van der Stel issued in the valley: Jan Andriessen, who had been a bachelor midshipman, was also known as Jan de Jonkheer and named his grant of land Vallei Jonkershoek. The Jonkershoek mountains are home to Leopards, Caracals, Klipspringer, Baboons, Honey Badgers and Mongooses. Birdlife includes kingfishers, black eagles, fish eagles, spotted eagle owls, sugarbirds, orange-breasted sunbirds and protea seed eaters.