Pienaarsrivier is a town situated along the N1 National Route and R101 Regional Route in the Limpopo Province of South Africa, approximately 37.7 km south of Bela-Bela (Warmbaths) and 70 km north of Pretoria.
The town lies north of the Pienaars River. The river is named after Petrus Gerhardus Jacobus Pienaar, born 26 February 1819 in George, Cape Colony, who trekked to the then Transvaal in 1858.
Jacobus Pienaar became a local pioneer farmer, and reputedly shot an elephant whilst hunting in the area. The Setswana name of this river is Moretele, from which the Moreletaspruit derives its name.
The town Pienaarsrivier was established in 1908. Pienaarsrivier is located within Bela-Bela Local Municipality which is part of the Waterberg District Municipality of Limpopo and serves as a Trans Provincial Region that connects Limpopo, Gauteng, and Mpumalanga.
