AJ, Aj, aJ, or aj may refer to:
The Ajanta Caves in Aurangabad district of Maharashtra state of India are about 30 rock-cut Buddhist cave monuments which date from the 2nd century BCE to about 480 or 650 CE.
Mohammed Ajmal Amir Kasab (Urdu: محمد اجمل امیر قصاب; 13 July 1987 – 21 November 2012) was a Pakistani militant and a member of the Lashkar-e-Taiba Islamist group, through which he took part in the 2008 Mumbai terrorist attacks in Maharashtra state of India.
April Jeanette "AJ" Mendez Brooks (born April Jeanette Mendez; March 19, 1987), better known by her ring name AJ Lee, is an American retired professional wrestler.
Ajith Kumar (born 1 May 1971) is an Indian film actor best known by his mononym Ajith or the name his fans gave him Thala and Ultimate Star known for his work in Tamil cinema.
Ajin: Demi-Human (Japanese: 亜人, Hepburn: Ajin) is a Japanese manga series written and illustrated by Gamon Sakurai.
Ajay Devgan (born Vishal Veeru Devgan on 2 April 1969), also credited as Ajay Devgn, is an Indian film actor, director and producer.
Ajinkya Madhukar Rahane (born 6 June 1988) is an international cricketer who represents India and is the vice captain in the Test format of the game.
For the cattleman and politician from Alberta, Canada, see Archibald J. McLean.
The Ajuran Sultanate (Somali: Dawladdii Ajuuraan, Arabic: الدولة الأجورانيون), also spelled Ajuuraan Sultanate, and often simply as Ajuran, was a Somali Muslim sultanate that ruled over large parts of the Horn of Africa in the Middle Ages.