Demetrios Bernardakis (Greek: Δημήτριος Βερναρδάκης, Dimitrios Vernardakis, also transliterated Dimitrios Bernardakis), (3 December 1833^[1]—25 January 1907^[2]) was a polymath writer and Professor of History at the National and Kapodistrian University of Athens.^[3]

He was born at Agia Marina, Lesbos (just south of Mytilene).^[4] His father was Nikolaos Vernardakis, originally from Crete, while his mother was Melissini, of the Trantalis family.^[5] His brothers were the learned Athanasios Bernardakis and Gregorios Bernardakis.^[4]

He studied on a scholarship given to him by Patriarch Alexandros Kallinikos from present-day Skotina, Pieria. A prolific writer, he translated and annotated the tragedies of Euripides (The Phoenician Women, Hecuba, Hippolytus, and Medea), but he became known chiefly for the sake of his own verse dramas, with which he wanted to create a romantic Greek theatre, taking as his example Shakespeare, Greek mythology, and Greek history. His works had success in his own era, but were quickly forgotten, chiefly by reason of their archaizing language.

His university career ended on 27 August 1869 when Bernardakis was compelled to resign by reason of continuing student reactions (the so-called Vernardakeia), which he attributed to collusion with his university rivals and their political power at the time.

His brother, Athansios Bernardakis, nominated Demetrios twice — in 1904^[6] and 1905^[7] — for the Nobel Prize in Literature.