Given name
Aleksei
“helper and defender of mankind”
Aleksei is a variant of Alexis. In Greek use, Alexis carries the interpretation “helper and defender of mankind.”
Meaning & origin
What it means
Aleksei is a variant of Alexis. In Greek use, Alexis carries the interpretation “helper and defender of mankind.”
Explained through its name family
Where it comes from
Aleksei is a form of Alexius. An origin associated with Alexius is Greek.
Explained through its name family
How it developed
In Russian use, Aleksei is used as a form of Alexius.
The story
Published U.S. birth records include this spelling as early as 1994. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Aleksei through the years
- Babies since 1880
- 467
- 455 boys · 12 girls
- Most popular year
- 2001
- 25 babies
- 2025
- 11
- #7,213 for boys
- 2021–25 vs 2016–20
- −15%
- Easing
By the numbers
In 2025, this name appeared in 11 U.S. birth records for boys, ranking No. 7,213 among boys’ names. Average annual use for boys was 15.3% lower in 2021–2025 than in 2016–2020. Its largest published annual count for boys was 25 in 2001. Published U.S. population figures for this spelling include 1,160 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Aleksei’s family of names
Aleksei has an affectionate form in Alyosha. Aleksei developed from Alexius. Aleksei has a related form in Alexis.
Inner ring: spellings · middle: nicknames and forms · outer: across languages.
Around the world
Aleksei has relatives in 3 languages.
4 related names in 3 languages. Point at a dot, or tab to the map and use the arrow keys.
Nicknames & forms 5
Diminutives, pet forms, short forms and variants used alongside the name.
Spellings & scripts 2
The same name written differently, including transliterations into other scripts.
Across languages 11
Equivalents and cognates in other languages, plus older forms it grew from.
- Aleksejequivalent
- Aleixequivalent
- Aleksisequivalent
- Alexiusroot
- Aleksejsequivalent
- Oleksaequivalent
- Олексаequivalent
- Aleksijequivalent
Show 3 moreShow fewer
People named Aleksei
- Aleksei BrusilovRussian and Soviet military commander1853–1926
- Aleksei BerezutskiRussian footballerborn 1982
- Aleksei MiranchukRussian footballerborn 1995
- Aleksei BalabanovRussian film director and screenwriter (1959-2013)
- Aleksei AntonovSoviet general (1896-1962)
- Aleksei LeontievRussian psychologist (1903–1979)
- Aleksei GubarevSoviet cosmonaut (1931–2015)
- Aleksei IonovRussian footballerborn 1989
- Aleksei YeliseyevSoviet cosmonautborn 1934
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Aleksei, these share its style, era, origin or sound, from outside its own family.