4. Najib Mikati
Najib Mikati is the Lebanese richest person and the politician and served as the Prime Minister of Lebanon twice. First he served as the Prime Minister in the caretaker government from Apr 2005 to June 2005. He was also nominated in the parliamentary consultation to serve as the Prime Minister and he gains the majority of the votes and holds the Prime Minister office from June 2011 to March 2013. He is also a businessman and established the telecommunication firm “Investcom” in 1982 with his brother Taha Mikati. Najib Mikati estimated net worth is US $ 3.3 billion and he is ranked at No. 4 in the list of top 10 richest people of Lebanon.