Alī Mubārak (Persian: علی مبارک), better known by his regnal title `Alā ad-Dīn `Alī Shāh (Bengali: আলাউদ্দীন আলী শাহ, Persian: علاء الدین علی شاه; r. 1338–1342) was an independent Sultan of Lakhnauti in Bengal. He was the foster brother of Shamsuddin Ilyas Shah, the eventual founder of the Bengal Sultanate.