Mario Pei (ur. 16 lutego 1901 w Rzymie, zm. 2 marca 1978 w New Jersey) – włoski lingwista i poliglota, autor licznych publikacji z dziedziny językoznawstwa i nauki języków obcych.
Bibliografia Poniżej podano listę publikacji w języku angielskim.
Językoznawstwo French Precursors of the Chanson de Roland, 1949, AMS Press Story of Language, 1949, Lippincott, All About Language, 1950, Lippincott Liberal arts dictionary in English, French, German [and] Spanish, 1952, Philosophical Library Liberal Arts Dictionary (with Frank Gaynor), 1952, Philosophical Library A Dictionary Of Linguistics (with Frank Gaynor), 1954, Philosophical Library Language For Everybody;: What It Is And How To Master It, 1956, New American Library Getting Along in Italian, 1958, Bantam One Language for the World, 1958, Biblio-Moser, Getting Along in Russian, 1959, Harper Getting Along in French (with John Fisher), 1961, Bantam 109 Most Useful Foreign Phrases for the Traveler, 1962, Curtis Voices of Man: The Meaning and Function of Language, 1962, Harper & Row The Story of English: A Modern Approach, 1962, Premier Invitation to Linguistics: A Basic Introduction to the Science of Language, 1965, Doubleday, Getting Along in German (with Robert Politzer), 1965, Bantam Glossary of Linguistic Terminology, 1966, Columbia University Press,