Jonkershoek Nature Reserve is a CapeNature nature reserve located approximately 10 km (6 mi) south-east of the town of Stellenbosch in the Western Cape province of South Africa.

The name Jonkershoek is said to hail 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[2] and named his grant of land Vallei Jonkershoek.

[1] Started as the Assegaaibosch farmstead in 1790, it was subsequently altered substantially by its various occupants.

In 1817 Lord Charles Somerset granted the land to Wouter Eduard Wium, with the special proviso that he plant oak trees, and the area now includes many huge oaks.

[1] In 1960 the Cape Provincial Administration purchased Assegaaibosch, and the house was renovated to its present condition.