Ghosn's grandfather was Bichara Ghosn, a Maronite Catholic who emigrated from Ajaltoun, French Mandate Lebanon to Brazil at the age of 13, eventually settling in remote Guaporé, Rondônia, near the border between Brazil and Bolivia. Bichara Ghosn was an entrepreneur and eventually headed several companies, in businesses including the rubber trade, the sale and purchase of agricultural products, and aviation. His son Jorge Ghosn married Rose Jazzar, a Nigerian-born Lebanese woman whose family came from Miziara in Lebanon then went to Brazil, where they settled in Porto Velho, the state capital of Rondônia, and had four children.