Eugenios Voulgaris or Boulgaris was a Greek Orthodox cleric, author, educator, mathematician, astronomer, physicist, and philosopher. He wrote about every discipline: legal, historical, theological, grammatical, linguistic, astronomy, political, mathematics, archaeology, music, secularism, euthanasia, and the tides. He wrote speeches, poems, appeals to Catherine II for the liberation of Greece, and hundreds of letters. He edited valuable editions of Byzantine writers and classical books and translated many texts from Latin into French. He was one of the students of Methodios Anthrakites. He translated many important foreign language academic documents to Greek. He was bishop of Cherson. He was a leading contributor to the Modern Greek Enlightenment.

Methodios Anthrakites was a Greek Orthodox cleric, author, educator, mathematician, astronomer, physicist, and philosopher.