Prince 'Abdul Mateen (Malay: Paduka Seri Pengiran Muda 'Abdul Mateen ibni Kebawah Duli Yang Maha Mulia Paduka Seri Baginda Sultan Haji Hassanal Bolkiah Mu'izzaddin Waddaulah; Jawi: عبد المتين; born 10 August 1991) is a prince of Brunei. He is the tenth child and fourth son of Sultan Hassanal Bolkiah of Brunei by his former second wife, Puan Hajah Mariam binti Haji Abdul Aziz.