His first wife, Dana Mouton died in 2004. His second wife is Deidré. Mouton has two sons, Jan and Piet, and a daughter, Charité. He lives in Stellenbosch, South Africa. His son Piet is the CEO of PSG Group. His eldest son Jan manages the PSG Flexible Fund and is a non-executive director of PSG. Mouton's longstanding friendship with the lately controversial businessman Markus Jooste is advertised on the Sauvignon Blanc wine that they produced together. Jooste facilitated Steinhoff's 20% investment in PSG which assisted Mouton in warding off a hostile bid from ABSA bank.