Race and politics Tengku Maimun binti Tuan Mat (Jawi: تڠكو ميمون توان مت; born 2 July 1959) is a Malaysian lawyer who has served as the 10th Chief Justice of Malaysia since May 2019.

[2][3] Tengku Maimun was announced as Malaysia's new Chief Justice, succeeding Richard Malanjum who retired in April 2019, in a statement released by the Prime Minister's Department on 2 May 2019.

[9] In 2014, Tengku Maimun was the only judge part of a three-person Court of Appeal panel presiding over a high profile child conversion case who dissented to the decision to reverse a mandamus order from the Ipoh High Court to then Inspector-General of Police (IGP), Khalid Abu Bakar, to locate and return M. Indira Gandhi's daughter Prasana Diksa and arrest her ex-husband Mohd Ridzuan.

[11] In 2016, Tengku Maimun was the sole judge part of a three-person Court of Appeal panel to dissent to the decision to convict then Democratic Action Party (DAP) chairman Karpal Singh of sedition.

[16] On 16 March 2022, a five-member Federal Court bench led by Tengku Maimun has unanimously dismissed former prime minister Najib Razak's appeal to adduce more evidence to the SRC International Sdn Bhd graft case in a bid to overturn his conviction and sentence.