Abd al-Aziz (, DMG: ʿAbd al-ʿAzīz), frequently also transliterated Abdul Aziz, is a male Muslim given name and in modern usage, surname. It is built from the Arabic words Abd, al- and Aziz. The name means "servant of the Almighty", Al-Azīz being one of the names of God in the Qur'an, which give rise to the Muslim theophoric names.

Abdülaziz of the Ottoman Empire or Abdülaziz I (Ottoman Turkish: عبد العزيز / `Abdü’l-`Azīz, ; 9/18 February 1830 – 4 June 1876) was the 32nd Sultan of the Ottoman Empire and reigned between 25 June 1861 and 30 May 1876. He was the son of Sultan Mahmud II and succeeded his brother Abdülmecid I in 1861.