Hasan bin Arifin (born 28 April 1953) is a Malaysian politician and corporate member who served as Chairman of the Tenaga Nasional Berhad (TNB) from October 2021 to his resignation in January 2023, Chairman of the Public Accounts Committee (PAC) from October 2015 to April 2018, Deputy Menteri Besar of Pahang and Member of the Pahang State Executive Council (EXCO) from April 1995 to December 1999, Member of Parliament (MP) for Rompin from May 2015 to November 2022, Member of the Pahang State Legislative Assembly (MLA) for Bukit Ibam from October 1990 to March 2004, Tioman from August 1986 to October 1990 and Rompin from April 1982 to August 1986.
He is a member of the United Malays National Organisation (UMNO), a component party of the Barisan Nasional (BN) coalition.
Hasan was nominated by Prime Minister of Malaysia Najib Razak to helm the post of chairman of the Public Accounts Committee (PAC) and appointed by Speaker of the House of Representatives Pandikar Amin Mulia on 19 October 2015.
[1] He took over from Nur Jazlan Mohamed who resigned from the PAC after being appointed Deputy Minister of Home Affairs by Najib.
[2] During his PAC Chairman tenure, Hasan was accused of tampering with the investigation into the 1Malaysia Development Berhad scandal involving then-Prime Minister Najib by Petaling Jaya Utara MP and fellow PAC member Tony Pua.