Leo
PopularA boy's name meaning lion.
Approved in Estados Unidos. Leo is on the official SSA list of names you can register. In the national top 20 of 2025.
Origin
Derived from Latin leo meaning lion, and a cognate of Leon. It also serves as a short form of names beginning with Leo, such as Leonard or Leopold.
Story
It was popular among early Christians and was borne by fourteen popes, including Saint Leo the Great, as well as six Byzantine emperors and five Armenian kings. A famous bearer was the Russian novelist Leo Tolstoy (1828 to 1910). Leo is also a constellation and the fifth sign of the zodiac.
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Get startedSources & references
- Baby Names from Social Security Card Applications · SSA · ssa.gov (approved-name list & birth statistics)
- Behind the Name · Leo