Nina Yakovlevna Dyakonova (also spelled Diakonova; Russian: Нина Яковлевна Дьяконова; born Magaziner; October 20, 1915, Petrograd, Russian Empire - December 9, 2013, St. Petersburg, Russian Federation) was a Russian researcher of 19th century English and European literature, full professor, Doctor of Philology, member of the Board of Directors of the International Byron Society, and member of the editorial board of the Russian academic book series Literaturniye pamyatniki. She was an authority in the history of English literature (with a special interest in English Romantic poetry (Keats, Byron, Shelley)) and links between European literatures with each other and with Russian literature, especially of the 19th century, following her professor .