Coordinates: 34°52′58″N 1°19′00″W / 34.8827758°N 1.3166696°W / 34.8827758; -1.3166696

Tlemcen (Arabic: تلمسان‎) is a town in Northwestern Algeria, and the capital of the province of the same name. It is located inland in the center of a region known for its olive plantations and vineyards. The city has developed leather, carpet, and textile industries, which it ships to the port of Rashgun for export.

Its population is about 140,000, while the province had 949,135 inhabitants in the 2008 census, and should reach about 1,200,000 by 2011.

The word Tlemcen (Arabic: تلمسان‎) comes from Berber Tala Imsan ( in Tifinagh) which means "the dry spring". The name is sometimes spelled Tlemsen, Tlemsan, or Tilimsen.

Its centuries of rich history and culture have made the city a center of a unique blend of music and art. Its textiles and handcrafts, its elegant blend of Islamic, Berber, Andalucian and French cultures, and its cool climate in the mountains have made it an important center of tourism in Algeria. It is home to a beautiful tomb - that of Sidi Boumédiène, whose tomb adjoins to a mosque. The Great Mosque at Tlemcen was completed in 1136 and is said to be the most remarkable remaining example of Almoravid architecture.