Iulia Hasdeu was a Romanian poet, the daughter of writer and philologist Bogdan Petriceicu Hasdeu. From a very young age, Hasdeu wrote poems and prose in both Romanian and French, taught herself foreign languages and studied piano and opera singing. She was the first Romanian woman to study at La Sorbonne University in Paris.

Iva Pekárková is a Czechoslovakia-born author who started writing and publishing novels after moving to New York City. Her novels are inspired by her various life experiences and she writes openly about sexuality, making her controversial in her native country. Most of her novels are originally written in Czech.

Ivailo Petrov was a Bulgarian writer, who authored a number of short stories. His work focuses on traditional village life in Bulgaria.

Ivan Sergeyevich Aksakov was a Russian littérateur and notable Slavophile.

Ivan Ančić was a Croatian theological writer.

Ivan Antunović was a Bunjevac writer, one of the most prominent public persons among the Bunjevci and Šokci people of his time. He was titular bishop in the service of the Kalocsa Archdiocese, Hungary. Antunović's writings helped preserve the language and culture of the Bunjevci and Šokci people.

Ivan Aralica is a Croatian novelist and essayist.

Ivan Ivanovich Artobolevsky was a Soviet scientist and engineer, academic of the Academy of Sciences of the Soviet Union, and Hero of Socialist Labour.

Ivan Vasilyevich Babushkin was a Russian professional Bolshevik revolutionary.

Ivan Khristoforovich Bagramyan, also known as Hovhannes Khachaturi Baghramyan, was a Soviet military commander and Marshal of the Soviet Union of Armenian origin.