MallowbyNames

Aleksei

Алексейah-LEK-say · defender or helper of mankind

2025 rank (boys)
#7,194
Babies named in 2025
11
Peak popularity
2001
2025 frequency
1 in 155,280 boys
Usually for
Boys
Trend
Holding steady

Holding steady, #7,194 for boys today.

Popularity of Aleksei since 1994

Babies named Aleksei per year in U.S. Social Security records.

81725200020102020Most births 2001Boys
Data table (by decade)
DecadeBoys
1990s72
2000s175
2010s133
2020s75

Meaning & origin

Aleksei is the Russian form of Alexius, rooted in the Greek Alexios meaning "defender." It first appeared in U.S. records in 1994, a relatively recent addition compared to its deep Orthodox history. The name reached its peak popularity in 2001 and has since remained stable in usage, never breaking into the top ranks. Despite its low frequency, Aleksei carries strong cultural resonance, tied to Russian saints and nobility. Parents choosing this name often appreciate its classic Slavic sound and the familiar nickname Alyosha.

Aleksei is the Russian form of Alexius, derived from the Greek name Alexios (Αλέξιος), meaning "defender" or "helper." The name has been borne by several Russian tsars and saints, notably Saint Alexius of Rome and Tsar Alexei Mikhailovich of Russia. It remains a traditional name in Eastern Orthodox cultures.

Aleksei” around the world

Where Aleksei lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • France

    5

    babies in 2024

Sources: INSEE (France).

Nicknames & variants

Nicknames: Alyosha, Lyosha, Alyoshenka

Variants: Alexei, Alexey, Aleksey, Alexius

Sibling names for Aleksei

Names that share Aleksei's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

A is for Aleksei, our favorite little boy.

A is for Aleksei…”

In a Mallowby alphabet book, Aleksei's letter becomes Aleksei's page: hand-illustrated, printed hardcover or paperback, made just for them.

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Questions parents ask

What does the name Aleksei mean?
Aleksei means "defender" or "helper" from the Greek Alexios.
How popular is Aleksei currently?
In 2025, Aleksei ranked 7194th in the United States, with about 1 in 155,280 newborns given the name.
Is Aleksei a boy or girl name?
Aleksei is traditionally a boy's name.