Scott DeLancey (born 1949) is an American linguist from the University of Oregon. His work focuses on typology and historical linguistics of Tibeto-Burman languages as well as North American indigenous languages such as the Penutian family, particularly the Klamath. His research is known for its diversity of its thematic and theoretical reach. He is well known for having developed the concept of mirative, for promoting the study of comparative Penutian and for being a vocal proponent of the idea that a system of agreement should be reconstructed in proto-Tibeto-Burman.