Dato' Seri Utama Haji Mohamad bin Hasan, familiarly known as Tok Mat or Mat Hasan, is a Malaysian politician who has served as the Minister of Foreign Affairs in the Unity Government administration under Prime Minister Anwar Ibrahim since December 2023. He served as the Minister of Defence in the PH administration under Prime Minister Anwar from December 2022 to December 2023. He has also served as the Deputy Chairman of Barisan Nasional (BN) and Deputy President of the United Malays National Organisation (UMNO) since June 2018, the Member of Parliament (MP) for Rembau since November 2022 as well as Member of the Negeri Sembilan State Legislative Assembly (MLA) for Rantau from March 2004 to February 2019 and again since April 2019. He served as the 10th Menteri Besar of Negeri Sembilan from March 2004 to May 2018 and Leader of the Opposition of Negeri Sembilan from July 2018 to February 2019 and again from April 2019 to July 2023. He was also the State Chairman of BN and UMNO of Negeri Sembilan.

The current Minister of Foreign Affairs of Malaysia has been Mohamad Hasan since 12 December 2023. The minister is deputised by the Deputy Minister of Foreign Affairs. The minister administers the portfolio through the Ministry of Foreign Affairs.