 His family belongs to the Fernandes-Prabhu clan, a Mangalorean Catholic Brahmin clan from Udyavara in Udupi district.He married Blossom Mathias Prabhu on 26 August 1981 and has one son Oshan and one daughter Oshanie.His son Oshan is married to Frazil Quadros and Oscar's daughter Oshanie is married to Mark Saldanha.