Dato' Sri Haji Mohammad Najib bin Tun Haji Abdul Razak (born 23 July 1953) is a Malaysian politician who has been the sixth Prime Minister of Malaysia since 2009. He previously held the post of Deputy Prime Minister from 7 January 2004 until he succeeded Tun Abdullah Ahmad Badawi as Prime Minister on 3 April 2009. Najib is President of the United Malays National Organisation (UMNO). He is the son of Malaysia's second prime minister, Tun Abdul Razak and the nephew of Malaysia's third prime minister, Tun Hussein Onn. Najib is also the Minister of Finance.

Najib succeeded Abdullah at a time after his ruling coalition, the Barisan Nasional, lost its long held two-thirds majority in parliament to the opposition led by former Deputy Prime Minister Anwar Ibrahim in the 2008 parliamentary election. Since then Najib has tried to build a moderate image for himself and the UMNO through the 1Malaysia campaign.

Born 23 July 1953, in Kuala Lipis, Pahang, Najib is the eldest of Prime Minister Abdul Razak's six sons, and the nephew of Hussein Onn, Malaysia’s third Prime Minister. His younger brother, Dato' Seri Mohd Nazir Abdul Razak, runs the country's second-largest lender, Bumiputra-Commerce Holdings Bhd. Najib is also one of the Four Noblemen of the Pahang Darul Makmur (Royal Court) by virtue of his inherited title as the Orang Kaya Indera Shahbandar. He received his primary and secondary education at St. John's Institution, Kuala Lumpur. He later attended Malvern College in Worcestershire, England, and subsequently went to the University of Nottingham, where he received a bachelor's degree in industrial economics in 1974. Najib Razak returned to Malaysia in 1974 and entered the business world, serving briefly in Bank Negara (Central Bank) and later with Petronas (Malaysia's national oil company) as a public affairs manager.