Abgar de Castro Araújo Renault (1901–1995) was a Brazilian professor, educator, politician, poet, essayist and translator.
A contemporary of Carlos Drummond de Andrade, his poetic work is closely associated with the Modernist movement.
He was also a highly regarded translator of English, American, French, Spanish and German poets, with special expertise in Shakespeare.
He was the fifth occupant of Chair 12 of the Brazilian Academy of Letters, to which he was elected on August 1, 1968, succeeding Macedo Soares and received on May 23, 1969, by academician Deolindo Couto.
Married to Inês Caldeira Brant Renault, he had two sons, Caio Márcio and Luiz Roberto and several grandchildren.