Across the world, Alexios (Алексей 
, Alexios 
, Алексий 
) is a prevalent male given name. The forename Alexios is characteristic of Russia, where it is a prevalent masculine name, Kazakhstan, where it is a widespread masculine name, and Greece, where it is a common boy's name (explore the name in all countries). Much less frequently, Alexios is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Алексей | Kazakhstan, Russia, Greece, Belarus, Ukraine |
| Alexios | Russia, France, Greece, Cyprus, Romania |
| Алексий | Kazakhstan, Kyrgyzstan, Russia |
| Аляксей | Belarus, Russia |
Alexios is also a popular name for the fictitious and mythical characters: Alexios , the character in the Assassin's Creed video game series; Rhino , the fictional character in Marvel Comics, The Amazing Spider-Man 2; Alyosha , the character from Dostoyevsky's Humiliated and Insulted; Alyosha Kravinoff , the fictional character in Marvel Comics and Alexey Shvabrin , character in The Captain's Daughter, and in many other works.
| alexios mosele Byzantine aristocrat and general (b. 750) |
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| alexios mosele Byzantine general (b. 800) |
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| alexios mosele Byzantine admiral (b. 801) |
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| alexios xiphias Catepan of Italy (b. 950) |
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| alexios palaiologos Byzantine nobleman and heir apparent to Emperor Alexios III Angelos (b. 1001) |
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| alexios komnenos governor of Dyrrhachium (b. 1077) |
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| alexios bryennios komnenos megas doux (b. 1102) |
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| alexios axouch officer (1105-1187) (b. 1105) |
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| alexios komnenos Sebastokrator, illegitimate son of Byzantine emperor Manuel I (b. 1153) |
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| alexios kontostephanos (b. 1150) |
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| alexios angelos komnenos (b. 1150) |
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| alexios laskaris (b. 1150) |
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| alexios komnenos Illegitimate son of Byzantine Emperor Andronikos I and Theodora Komnene, queen consort of Jerusalem (b. 1170) |
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| alexios komnenos (b. 1160) |
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| alexios doukas philanthropenos Byzantine admiral (b. 1201) |
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