Sultan Abdul Halim Mu'adzam Shah or in full, Ke Bawah Duli Yang Maha Mulia Al-Sultan Sir Almu'tasimu Billahi Muhibbudin Tuanku Alhaj Abdul Halim Mu'adzam Shah ibni Almarhum Sultan Badlishah, GCB, KStJ, (born 28 November 1927) was the fifth Yang di-Pertuan Agong of Malaysia from 21 September 1970 to 20 September 1975 and 27th Sultan of Kedah since 15 July 1958.
