Sultan ʽAbdul ʽAziz al-Muʽtasim Billah Shah ibni Almarhum Raja Muda Musa KCMG KBE (عبد العزيز بيراك, 14 November 1887 – 26 March 1948) was the 31st Sultan of Perak, a state in modern Federated Malay States.