Alastar

#12,086 in 2025Boys' name

To defend

Alastar has been given to 36 babies in the U.S. since 2011. In 2025 it ranked #12,086 of 13,926 boys’ names in use. Its peak year was 2018, with 6 recorded.

Babies named Alastar, 2025

1 in 663,000

Alastar over time, 1880–2025

Boys
024618801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Alastar: meaning, origin, and history

To defend

Deeper origin not confirmed in the cited records

What Alastar means

Alastar means “to defend”, associated with aléxō.

Origin, language, and formation

Alastar is used in Irish.

Alastar comes through Old Irish Alaxander, Latin Alexander and Ancient Greek Ἀλέξανδρος.

Related names and everyday forms

Related names include Alexander.

Pronunciation and spelling

In Irish, Alastar is pronounced /ˈal̪ˠəsˠt̪ˠəɾˠ/.

American usage and historical context

In the United States, 36 boys were recorded with the name Alastar between 2011 and 2025. Its highest annual count was 6 in 2018; its best national rank was #10,811 in 2018.

Over 5 years its rank rose, from #12,101 in 2020 to #12,086 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Alastar?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 663,000
5 of 3,315,165 births
Among boys only
1 in 342,000
<0.01% of boys
Rank, 2025
#12,086
of 13,926 boys’ names in use
Coin-flip room size
459,581 kids
Even odds of a second one

Where Alastar sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 459,581 children born in 2025 and it's an even bet that one of them is another Alastar. In a class of 30 the chance is Under 1%.

When Alastars were born

Half of everyone ever recorded as Alastar was born before 2018 — so the typical Alastar is around 7 today.

Median birth year
2018
About 7 years old
Biggest decade
2010s
58.3% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
36
People you could plausibly meet
Choose a decade

2010s — 58.3% of all recorded uses (21).

Is Alastar rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
—
Not ranked then
Rank vs 5 years ago
+15
Places climbed
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
83.3%
Peak was 2018 (6)
Years since peak
7
Years
Year-to-year steadiness
Steady
10.0% average annual change
Best rank ever
#10,811
2018

Spellings of Alastar

Alastar is not the most common spelling — Alistair is, with 53.3% against Alastar's 0.47%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Alastar by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#12,086
Trend vs 5 yrs ago
Up 15
Best rank ever
#10,811
2018
Peak year
2018
6 that year
First recorded
2011
Last recorded
2025
All-time count
36
Count in 2025
5

Names similar to Alastar

Matched on shared beginnings and endings, similar length, and comparable popularity.

Sibling names for Alastar

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Alastar