Ignatius G. Mattingly (1927–2004) was a prominent American linguist and speech scientist.[1] Prior to his academic career, he was an analyst for the National Security Agency from 1955 to 1966.[2] He was a Lecturer and then Professor of Linguistics at the University of Connecticut from 1966 to 1996 and a researcher at Haskins Laboratories from 1966 until his death in 2004. He is best known for his pioneering work on speech synthesis[3] and reading and for his theoretical work on the motor theory of speech perception in conjunction with Alvin Liberman.[4] He received his B.A. in English from Yale University in 1947, his M.A. in Linguistics from Harvard University in 1959, and his Ph.D. in English from Yale University in 1968.