Kesava Misra (c. 13th-14th century CE) was a Mithila brahmana from North Bihar and the classical author of तर्कभाषा (Tarka Bhasa), a foundational treatise on the Nyaya system of Indian philosophy. His work serves as an elementary manual for the syncretic school of Nyaya-Vaisheshika, renowned for its lucid style and scientific arrangement of topics. The book available is an edition of his Tarkabhasa with commentary.