Tun Datuk Seri Panglima Haji Juhar bin Mahiruddin (Jawi: جوهر بن ماهرالدين; born 5 November 1953) is a Malaysian politician who has been the 10th Yang di-Pertua Negeri of Sabah since January 2011. He was Speaker of the Sabah State Legislative Assembly from December 2002 to December 2010. He was Deputy Speaker of the Dewan Rakyat from October 1990 to November 1999. He is also the Chancellor of Universiti Malaysia Sabah. Juhar is a founding member of the United Malays National Organisation's (UMNO) branch in Sabah.