Tuan Guru Dato' Bentara Setia Haji Nik Abdul Aziz Nik Mat (10 January 1931 – 12 February 2015) was a Malaysian politician and Muslim cleric. He was the Menteri Besar of Kelantan from 1990 to 2013 and the Mursyidul Am or Spiritual Leader of the Pan-Malaysian Islamic Party (PAS) from 1991 until his death in 2015. Overall, his career as an elected politician lasted for some 48 years following his election to the Parliament of Malaysia in 1967.