Manolis A. Triantafyllidis (Greek: Μανόλης Α. Τριανταφυλλίδης; Athens, 15 November 1883 – Athens, 20 April 1959) was a major representative of the demotic movement in education in Greece.

Manolis A. Triantafyllidis
Born	15 November 1883 Athens, Greece
Died	20 April 1959 Athens, Greece
Nationality	Greek
Occupation(s)	Educator, linguist
Known for	Demotic movement in education, Triantafyllidis Dictionary

He was mostly active in Thessaloniki, at the Aristotle University of Thessaloniki. He is well known for his comprehensive grammar of Modern Greek.

There is an institute named after him at the University of Thessaloniki (the Manolis Triantafyllidis Foundation, also known as the Institute of Modern Greek Studies), under whose auspices the Triantafyllidis Dictionary (formally, Dictionary of Common Modern Greek [Λεξικό της κοινής νεοελληνικής], 1998) was published.