Leo
Meaning
lion
Also written Léo.
Famously borne by Leo Messi.
The story
Leo is the Latin word for lion, used directly as a name and also as a short form of longer names such as Leon and Leopold. Early Christian saints carried it, thirteen popes chose it, and Leo Tolstoy gave it one of literature's largest shadows. The US curve is a true long revival. Leo begins at a solid level in the 1890s, declines gradually through the middle twentieth century, sits near its low point from the 1930s through the 1990s, and then climbs in every later decade to reach its highest point in the 2020s. The curve itself records the comeback without needing one celebrity explanation. One syllable carries an animal, papal history, and a modern international ease that works almost unchanged in many languages.
The formal names behind Leo
Leo is an established short form of each of these names.
Leonardo · Italian origin · brave lion (leon 'lion' + hard 'brave, hardy'); Leonardo da Vinci, Renaissance polymath, inventor, and artist
Leonard · Germanic origin · Germanic, 'brave lion' or 'lion-strength'
Leopold · Germanic origin · "bold people"
Leonid · Russian origin · lion-like
Leo around the world
One shared root links 5 names across 5 languages.
Shared root: from Latin leo "lion" (Greek leōn), with Lionel as its medieval French diminutive "little lion"
The constellation
More branches
On record since at least 440: Pope Leo I.
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Leo peaked in the 2020s.
See popularity in Brazil
Popularity in Brazil
20,018 people · the #1,068 first name in Brazil · about 1 in 10,101 · median age 25
Among people named Leo living in Brazil at the 2022 census, roughly as many were born in the 2000s as in the 2010s, more than in any other decade.
The census also counted 2,962 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
The Leo deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Leo truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Leo fits with your family’s names and surname.
Keep exploring
Names like Leo · Middle names for Leo · Spanish baby names from Spain · Names of poets and writers · Names of soccer legends · Short names
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