Konstantinos A. Plevris (Greek: Κωνσταντίνος Α. Πλεύρης, born 1939 in Athens), in English sometimes Constantine Plevris or Kostas Plevris, is a Greek attorney of law of the Greek Supreme Court and far right author. A prolific writer, over the course of decades he has authored a number of books and other texts relating to Greek history, Greek culture, sociology, and politics, with a clear nationalist, homophobic (such as his book titled "Οι Κίναιδοι", a vehement polemic against homosexuals) content. He was the founder and leader of two nationalist parties, 4th of August and Front Line, with the former political party not only playing a significant role in influencing and shaping the future direction of the Greek extreme right, but also standing in its own right as a prominent pre-junta political movement in general. He has also cooperated (according to interviews he gave to various publications, including one to Italian magazine L'Europeo in 1976, which were quoted and accepted as proof in a court of law where he was the plaintiff against author Nikos Kleitsikas) with various European neo-fascist groups (including the Ordine Nuovo), and figures such as Pino Rauti, Pino Romualdi, Giorgio Almirante, and others of the same ilk. He later briefly joined the right-wing party Popular Orthodox Rally, as its leading candidate in the 2004 elections. He hosts the weekly television show "Edo Ellas" (Εδώ Ελλάς in Greek) on the EXTRA-3 channel, and was the host of "Istorikes Mnimes" (Ιστορικές Μνήμες) on TeleAsty, Karatzaferis' TV channel. He is father of Thanos Plevris, former member of the Greek parliament with the nationalist party Popular Orthodox Rally.