Arrigo Boito (Italian: ; 24 February 1842 – 10 June 1918) (whose original name was Enrico Giuseppe Giovanni Boito and who wrote essays under the anagrammatic pseudonym of Tobia Gorrio) was an Italian poet, journalist, novelist, librettist and composer, best known today for his libretti, especially those for Giuseppe Verdi's last two monumental operas Otello and Falstaff (not to mention Amilcare Ponchielli's operatic masterpiece La Gioconda) and his own opera Mefistofele. Along with Emilio Praga and his own brother Camillo Boito, he is regarded as one of the prominent representatives of the Scapigliatura artistic movement.