Ljubo Wiesner (February 2, 1885 in Zagreb – July 3, 1951 in Rome) was a Croatian poet. He was a follower of Antun Gustav Matoà ¡'s work.
He founded the publications GriÃÂ, Kritika and Savremenik. His introduction to Hrvatska mlada lirika in 1914 defined the poetic style of the followers of Matoà ¡. Wiesner was also active musically, and played gusle. Wiesner translated foreign poetry into Croatian, including works by Walt Whitman. He was an editor of Mate UjeviÃÂ's Croatian Encyclopedia.
During World War II he worked on the Berlin-based Suradnja. From 1948, until his death he lived in Rome at the Pontifical Croatian College of St. Jerome, where he organized the Vatican's radio program in Croatian.