ʿAlā ad-Dīn Fīrūz Shāh (Bengali: আলাউদ্দীন ফিরোজ শাহ, Persian: علاء الدین فیروز شاه) was the son and successor of Sultan Nasiruddin Nasrat Shah of Bengal. He served as a governor of Chittagong during his father's reign, and was a patron of Bengali literature. Firuz Shah ascended the throne in 1533, though it was not unanimously recognised by all the nobles of Bengal. The conflict with the Ahom kingdom continued during his reign and the Bengali army led by had reached as far as Kaliabor. Within three months as Sultan, Firuz Shah was assassinated by his uncle, who succeeded him as Sultan Ghiyasuddin Mahmud Shah.