Octavian was the name of Augustus (63 BC – 14 AD) before he became Emperor of Rome.

Octavian or Octavianus may also refer to: Octavian (horse), a British horse Octavian, an octopus villager from the video game series Animal Crossing Octavian (rapper), French-British rapper Octavian (romance), a 14th-century Middle English poem Octavians, financial commissioners in 16th century Scotland Octavian, a character in Der Rosenkavalier Octavian or Gus, a mouse in Cinderella Octavian, a Camp Half-Blood character Octavius, Latin praenomen (first name)

People with the given name Octavianus (poet), Latin poet of the 6th century AD Octavian Abrudan (born 1984), Romanian footballer Octavian Belu (born 1951), Romanian gymnastics coach Octavian Bodișteanu (born 1977), Moldovan politician Octavian Chihaia (born 1981), Romanian footballer Octavian Cotescu (1931–1985), Romanian actor Octavian Drăghici (born 1985), Romanian footballer Octavian Goga (1881–1938), Romanian politician, poet, and playwright Octavian Grigore (born 1964), Romanian footballer Octavian Guțu (born 1982), Moldovan swimmer Octavian Ionescu (footballer, born 1990), Romanian football center back Octavian Ionescu (footballer, born 1949), Romanian football midfielder Ștefan Octavian Iosif (1875–1913), Romanian poet and translator Octavian Nemescu (born 1940), Romanian composer Octavian Ormenișan (born 1992), Romanian footballer Octavian Paler (1926–2007), Romanian writer and activist Octavian Popescu (born 1938), Romanian footballer Octavian Popescu (born 1985), Romanian footballer Octavian Smigelschi (1866–1912), Austro-Hungarian Romanian painter Octavian Codru Tăslăuanu (1876-1942), Romanian magazine editor and politician Octavian Țîcu (born 1972), Moldovan politician Octavian Utalea (1868–?), Romanian politician Octavian Vintilă (born 1938), Romanian fencer Octavian Zidaru (born 1953), Romanian fencer Octavian, birth name of Pope John XII Octavian, the Antipope Victor IV (1159–1164)