- Tiaret is a city in western Algeria, located about 340 kilometers southwest of the capital, Algiers. It is the capital of the Tiaret Province and has a population of approximately 187,368 people (as of 2018). Tiaret is known for its historical sites, including ancient ruins from the Roman period, such as Timgad and Banga. The city also has a significant agricultural sector, with olive oil production being a major industry.