John Colarusso is a linguist specializing in Caucasian languages. Since 1976, he has taught at McMaster University in Hamilton, Ontario. He has been described as "one of the world's most distinguished scholars of comparative linguistics".
Colarusso has published more than sixty-five articles on linguistics, myths, politics, and the Caucasus; he has also authored three books, edited one, and is finishing two further books.
Among other works, he has published grammar books of the Kabardian language.
- Colarusso, John (1997). "Phyletic Links between Proto-Indo-European and Proto–Northwest Caucasian". The Journal of Indo-European Studies (Chicago Linguistic Society) 25 (1–2): 119–151.
- Colarusso, John (2003). "Further Etymologies between Indo-European and Northwest Caucasian". In Holisky, Dee Ann; Tuite, Kevin. Current Issues in Linguistic Theory. Amsterdam: John Benjamins Publishing Company. pp. 41–60. ISBN 978-1588114617.
- Colarusso, John (2014). The Northwest Caucasian Languages (RLE Linguistics F: World Linguistics): A Phonological Survey (Routledge Library Editions: Linguistics) Kindle Edition