I. Valerian (born Valeriu Ionescu; August 1, 1895 – November 21, 1980) was a Romanian writer and journalist.
Born in Ivești, Galați County, the son of Fotache, a worker and clerk active in Ivești and Tecuci, and his wife Amalia, he spent his childhood in Tecuci. There he attended school at the primary and gymnasium levels before going to Vasile Alecsandri High School in Galați from 1907 to 1915. In 1917, during World War I, he graduated from the Military Reserve Officers' School in Bucharest, going on to participate in the Battle of Mărăști as part of the 2nd Army under Alexandru Averescu. Wounded on August 6, he was promoted to lieutenant and made a knight of the Order of the Crown.
Between 1917 and 1921, he recuperated at Bârlad, working together with Alexandru Vlahuță and George Tutoveanu, becoming a member of Academia Bârlădeană and making his debut with verses in Florile Dalbe. He married professor Elena Ganea in 1922, fathering five children. Moving to Bucharest in 1925, he was active in the Sburătorul circle, publishing verses in its Revista literară magazine. He joined the Romanian Writers' Society (SSR) in 1922, and in 1925 graduated from the Literature and Philosophy Faculty of the University of Bucharest, magna cum laude. His first published book, Caravanele tăcerii ("The Caravans of Silence"), appeared in 1923, and it received a prize from the Romanian Academy the following year. In 1925, he was elected a member of the Royal Romanian Geographical Society.