Nicholas Kalliakis (Greek: Νικόλαος Καλλιάκης, Nikolaos Kalliakis;[2] Latin: Nicolaus Calliachius; Italian: Niccolò Calliachi; c. 1645[3] - 8 May 1707) was a Cretan Greek[4] scholar and philosopher who flourished in Italy in the 17th century.

Nicholas Kalliakis was born of Greek ancestry[10][11][12][13][14] in Candia, Crete which was under control of Venice (present-day Greece) in 1645.

[15] He migrated to Rome where he stayed for ten years, becoming one of the outstanding teachers of Greek and Latin,[16] he was ultimately made doctor of philosophy and theology.

[17] He moved to Venice in 1666 where he was appointed professor of Aristotelian philosophy[18] and of the Greek and Latin languages.

[20] In 1677 Nicholas Kalliakis was invited to Padua and took the chair of professor of the belles-lettres[21] and of philosophy and rhetoric.