Flavius Galerius Valerius Licinianus Licinius (c. 250 - 325) was Roman emperor from 308 AD to 324 AD.
Licinius went with his close friend the Emperor Galerius on the Persian expedition in 297. After the death of Flavius Valerius Severus, Galerius declared Licinius emperor honorific in the West in 308.
On the death of Galerius, in May 311, Licinius shared the entire empire with Maximinus Daia. The Hellespont and the Bosporus were the dividing line.