Tun Azizan bin Zainul Abidin (Jawi: عزيزان بن زین العابدین; 28 May 1935 – 14 July 2004) was a Malaysian corporate figure and civil servant who was the former Chairman, President and Chief Executive Officer (CEO) of Petronas.
He was the father of Amir Hamzah Azizan, the Minister of Finance II, Senator and former CEO of the Employees Provident Fund (EPF).
He was Chairman of the ASEAN-Canada Business Council, Treasurer of the Crime Prevention Foundation and a Member of the Management Improvement Commission of the Royal Malaysian Police.
On 5 June 2010, five years after his death, he was posthumously awarded the Malaysian federal highest award, the Seri Setia Mahkota Malaysia (SSM), which carries the title "Tun" in conjunction with the birthday of the 13th Yang di-Pertuan Agong, Tuanku Mizan Zainal Abidin, at Istana Negara, Kuala Lumpur.
The KA Tun Azizan, a cargo ship, converted by Petronas for use in the Eastern Sabah Security Zone is named after him.