Maximus Planudes (Greek: Μάξιμος Πλανούδης, Máximos Planoúdēs; c. 1260 – c. 1305) was a Byzantine Greek monk, scholar, anthologist, translator, grammarian and theologian at Constantinople. Through his translations from Latin into Greek and from Greek into Latin he brought the Greek East and the Latin West into closer contact with one another. He is now best known as a compiler of the Greek Anthology.
Maximus Planudes lived during the reigns of the Byzantine emperors Michael VIII and Andronikos II. He was born at Nicomedia in Bithynia in 1260, but the greater part of his life was spent in Constantinople, where as a monk he devoted himself to study and teaching. On entering the monastery he changed his original name Manuel to Maximus.
Planudes possessed a knowledge of Latin remarkable at a time when Rome and Italy were regarded with some hostility by the Greeks of the Byzantine Empire. To this accomplishment he probably owed his selection as one of the ambassadors sent by emperor Andronikos II in 1327 to remonstrate with the Venetians for their attack upon the Genoese settlement in Galata near Constantinople. A more important result was that Planudes, especially by his translations, paved the way for the revival of the study of Greek language and literature in western Europe.
He was the author of numerous works, including: a Greek grammar in the form of question and answer, like the Erotemata of Manuel Moschopulus, with an appendix on the so-called "Political verse"; a treatise on syntax; a biography of Aesop and a prose version of the fables; scholia on certain Greek authors; two hexameter poems, one a eulogy of Claudius Ptolemaeus— whose Geography was rediscovered by Planudes, who translated it into Latin— the other an account of the sudden change of an ox into a mouse; a treatise on the method of calculating in use amongst the Indians (ed. C. J. Gerhardt, Halle, 1865); and scholia to the first two books of the Arithmetic of Diophantus.