 Sakya Paṇḍita (Sa-skya Paṇḍita Kun-dga’ Rgyal-mtshan, 1182–1251, abbreviated Sapaṇ) is one of Tibet’s greatest and most influential philosophers. He is the intellectual giant of the Sakya school of Tibetan Buddhism, famous among Tibetans for his learning—signified in his honorific title meaning “Paṇḍit from Sakya”. His knowledge was broad, but his expertise is most noted in the areas of epistemology (pramāṇa), which included significant contributions in the philosophy of language and the study of debate, and the study of language itself through lexicography, grammar and poetics. He is often counted as one of the “great translators” of Tibet’s later transmission period, and he is credited with initiating sustained study of Dharmakīrti’s Pramāṇavārttika and Daṇḍin’s Kāvyādarśa, texts with tremendous intellectual historical importance in Tibet. This entry will provide a summary of his life and works, and then focus on a few key points and arguments in his major philosophical works.