Octave Merlier

Octave Merlier (Greek: Οκτάβιος Μερλιέ; 1897–1976) was an expert on the Modern Greek language.

Merlier was born in Roubaix. He studied at the Sorbonne and École pratique des hautes études under the tutelage of Antonius Meillet and Joseph Vendyres.

He served as director of the Institut français d'Athènes from 1938–1961. In 1923 he married Melpo Logotheti (), noted for her collection of Modern Greek folk songs.

Merlier died in Athens.