Johann Peter Rupert is a South African billionaire businessman, who is the eldest son of business tycoon Anton Rupert and his wife Huberte. He is the chairman of the Swiss-based luxury-goods company Richemont and the South Africa-based company Remgro. Since April 2010, he has been the CEO of Compagnie Financiere Richemont. Rupert and family were ranked the second richest in South Africa; behind Elon Musk; on the 2025 Forbes list, with an estimated net worth of US$15.2 billion and US$17.7 billion according to Bloomberg Billionaires Index.