Leo I.
Leo I. is the name of the following people:
- Leo I (around 400–461), Pope, see Leo the Great
- Leo I (Byzantium) (also Leon I ; around 401–474), Emperor of Byzantium
- Leo I (Abkhazia) (735 – around 791), King of Abkhazia
- Leo I. Carigradjanin († 1056), Archbishop of Ohrid
- Leo I (Armenia) († 1140), King of Armenia
- Leo I of Galicia (* around 1228, † around 1301), Rurikid prince; from 1245 to 1264 Prince of Bels, followed in 1264 as Prince of Halych-Volodymyr and Prince of Przemyśl
See also:
- Leo I Group , a group of galaxies in the constellation of Leo
- Leo I dwarf galaxy , a dwarf galaxy in the constellation of Leo
