Aleksei
Meaning
"defender of mankind"
Origin: Greek
Cultural Roots
Quick Stats
- Popularity Rank
- #5,658
- Total SSA Count
- 17
- Syllables
- 3
- Formality
- Formal
- Nicknames
- Alek, Aleks, Lyosha
Baby Name Comparison — 2026
"defender of mankind"
Origin: Greek
"lord of the earth, husband of the earth"
Origin: Proto-Indo-European
Aleksei is more popular, ranked #5658 vs #5724 for Poseidon.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
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Aleksei is more popular, ranked #5658 compared to Poseidon at #5724 in the United States.
Aleksei means "defender of mankind" (Greek origin). Poseidon means "lord of the earth, husband of the earth" (Proto-Indo-European origin).
Aleksei is primarily a boy name. Poseidon is primarily a boy name.