Across the world, Leo (Leo 
, Лев 
, レオ 
, among others...) is a widespread masculine given name. The forename Leo is habitual in Macao, where it is a common principally masculine, but very infrequently female name, Hong Kong, where it is a common masculine name, and Croatia (explore the name in all countries). Measured by absolute frequency, the name is most common in Russia, Philippines, and the United States. Much less frequently, Leo is the last name as well as the forename.
Leo is also a name from the Bible. Explore more in our Biblical names portal!
| VARIANT | COUNTRY |
|---|---|
| Leo | Germany, Indonesia, Italy, Philippines, United States |
| Лев | Kazakhstan, Russia, Belarus, United States, Ukraine |
| レオ | Japan |
| ليو | Saudi Arabia, Sudan, Algeria, Egypt, Iraq |
| Лео | Azerbaijan, Kazakhstan, Russia, Kyrgyzstan, Ukraine |
| ליאו, לאו | Israel |
| Leō, Lêô | Myanmar |
Kaleo, Kaleolani, Lav, League, Leeb, Leeuw, Legua, Lejon, Leon, Leonard, Leonardo, Leonas, Leone, Leonid, Leonidas, Leonide, Leonie, Leons, Leonīds, Leopold, Leu, Lev, Lew, Leão, Leò, Leó, León, Leô, Leõ, Leő, Leǿ, Lieue, Lionel, Liun, Liuni, Ljun, Lleó, Luan, Lyon, Lèo, Lèv, Lèò, Lèó, Lèô, Lèõ, Léault, Légua, Léo, Léon, Léonidas,
Leo is also a prevalent name for the fictitious and mythical characters: Leo McGarry , the character in The West Wing; Leo Wyatt , the fictional human, Charmed; Leo Fitz , the Agents of S.H.I.E.L.D. character; Leo Kasper , the protagonist from the 2008 video game Manhunt 2 and Leo Manfred , the fictional character from Detroit: Become Human, and in many other works.
| leo of montefeltro HR (b. 270) |
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leo pp. i Pope from 440 to 461, IT (b. 390) |
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leo ii Byzantine emperor (467-474) (b. 467) |
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leo iv Byzantine emperor (b. 750) |
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leo pp. iii Pope of the Catholic Church from 795 to 816, IT (b. 750) |
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| leo chamaidrakon (b. 701) |
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leo iv pope of the Roman Catholic Church, IT (b. 790) |
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leo phokas the elder Byzantine general (b. 801) |
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| leo the mathematician Byzantine philosopher, mathematician and logician (b. 790) |
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| leo argyros 10th-century Byzantine general (b. 801) |
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leo pp. viii pope, IT (b. 915) |
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leo fokas Byzantine general, TR (b. 915) |
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| leo sarakenopoulos Byzantine general (b. 901) |
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| leo of synada Metropolitan of Synada (10th century) (b. 937) |
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| leo the deacon Byzantine historian (b. 950) |
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