Leon IV or Leo IV may refer to:
- Leo IV the Khazar (750 – 780), Byzantine Emperor
- Pope Leo IV, pope from 847 – 855
- Leo IV, King of Armenia (1309 – 1341), last Hethumid king of Cilicia
- Leo IV (dwarf galaxy), a dwarf satellite galaxy of the Milky Way
Famous quotes containing the word leo:
“Leo: What was she, a TV groupie? A hooker?
Rob: No, she was not a TV groupie, or a hooker. She’s a cellist. A very funny, pretty, interesting, intelligent, fabulous, vivacious cellist.
Leo: Oh yeah, well, you’d better not see her again.”
—Jonathan Reynolds, screenwriter. Leo (Richard Mulligan)