MallowbyNames

Aleister

AL-iss-ter · Of debated origin, likely a Scottish variant of Alister, itself an Anglicized form of Alasdair, the Scottish Gaelic equivalent of Alexander, meaning 'defender of men.'

2025 rank (boys)
#2,941
Babies named in 2025
42
Peak popularity
2020
2025 frequency
1 in 40,668 boys
Usually for
Boys
Trend
Declining since 2020

Declining since 2020, #2,941 for boys today.

Popularity of Aleister since 1997

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

234669200020102020Most births 2020Boys
Data table (by decade)
DecadeBoys
1990s6
2000s81
2010s282
2020s284

Meaning & origin

Aleister is a rare Scottish name that entered U.S. records in 1997. Its use has been modest but steady, with a peak in popularity in 2020. Since then, the name has been on a slight decline, though it remains a distinctive choice. The name is most frequently given in California and Texas. Aleister remains an uncommon alternative to the more familiar Alistair or Alister, appealing to parents seeking a name with a literary or occult resonance without the weight of its historical associations.

Aleister is a Scottish variant of Alister, which itself derives from Alasdair, the Gaelic form of Alexander. The name Alexander comes from the Greek Alexandros, meaning 'defending men.' The spelling Aleister was notably used by the occultist Aleister Crowley (born Edward Alexander Crowley), who adopted it in the late 19th century as a distinctive variant.

Where Aleister is most popular

Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.

Nicknames & variants

Nicknames: Al, Aly

Variants: Alister, Alistair, Alasdair, Alastair

Sibling names for Aleister

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

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

A is for Aleister, our favorite little boy.

A is for Aleister…”

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

Make Aleister's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Aleister mean?
Aleister is a Scottish variant of Alister, which is derived from the Gaelic Alasdair, meaning 'defender of men.' It is essentially a form of Alexander.
How popular is the name Aleister currently?
As of 2025, Aleister is a rare name, ranking 2941st in the United States, with about 1 in 40,668 boys given the name that year.
Is Aleister a boy's name or a girl's name?
Aleister is traditionally a masculine name, used almost exclusively for boys.