Southwestern Iranian languages are a branch of the Iranian languages, which belong to the larger Indo-Iranian group. This branch primarily includes languages such as Persian, Luri, and Bakhtiari. These languages are predominantly spoken in southwestern regions of Iran and share common linguistic features, including vocabulary and grammar. The Southwestern Iranian languages are characterized by their rich literary traditions and cultural significance. Persian, the most widely spoken among them, serves as the official language of Iran and has influenced many other languages in the region. Luri and Bakhtiari are also important for their unique dialects and contributions to local culture.