Gregorios N. Bernardakis (Greek: Γρηγόριος Ν. Βερναρδάκης, translit. Grigorios N. Vernardakis, Neolatin Gregorius N. Bernardakis, b. Mytilene 1848, d. 1925) was a Greek philologist, palaeographer, and university professor. His brother was the dramatist Demetrios Bernardakis.
Bernardakis was born in Mytilene, on the island of Lesbos, when it was still a part of the Ottoman Empire. He studied at the National and Kapodistrian University of Athens and earned his PhD at the age of twenty-three. While still a student there, he published his first book, Σχόλια εἰς τας Δημηγορὶας του Θουκιδὶδου κατὰ τας ἅριστας ἒκδωσεις ("Scholia on the Speeches of Thucydides according to the best editions", 1867). After graduation, he began his teaching career in Egypt, where he was first posted to the Abetios School in Cairo and afterwards at the Hellenic Gymnasium of Alexandria. Later he completed his philological studies at the University of Leipzig and the University of Berlin, which gave him a chance to engage in palaeography in France and in Italy. Afterwards, he returned to Greece, winding up as principal of the Gymnasium of Mytilene (1880–94) and continuing afterwards to an appointment at the Zariphios School of Philippopolis (1895–98). In 1898, he became a regular professor of Greek literature at the National and Capodistrian University of Athens, where he taught continuously until 1923.