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Regulus

#10,439 in 2025Boys' name

Prince, little king

Regulus has been given to 18 babies in the U.S. since 2021. In 2025 it ranked #10,439 of 13,926 boys’ names in use. Its peak year was 2025, with 7 recorded.

Babies named Regulus, 2025

1 in 474,000

Regulus over time, 1880–2025

Boys
0246818801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Regulus: meaning, origin, and history

Prince, little king

Deeper origin not confirmed in the cited records

What Regulus means

Regulus means “prince, little king”.

Origin, language, and formation

Regulus is used in Old English.

American usage and historical context

In the United States, 18 boys were recorded with the name Regulus between 2021 and 2025. Its highest annual count was 7 in 2025; its best national rank was #10,439 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 Regulus?

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

Among all babies, 2025
1 in 474,000
7 of 3,315,165 births
Among boys only
1 in 244,000
<0.01% of boys
Rank, 2025
#10,439
of 13,926 boys’ names in use
Coin-flip room size
328,272 kids
Even odds of a second one

Where Regulus 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 328,272 children born in 2025 and it's an even bet that one of them is another Regulus. In a class of 30 the chance is Under 1%.

When Reguluss were born

Half of everyone ever recorded as Regulus was born before 2023 — so the typical Regulus is around 2 today.

Median birth year
2023
About 2 years old
Biggest decade
2020s
100.0% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
18
People you could plausibly meet
Choose a decade

2020s — 100.0% of all recorded uses (18).

Is Regulus 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
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
100.0%
Peak was 2025 (7)
Years since peak
Peaking now
At its all-time high
Year-to-year steadiness
Not enough data
Too few years
Best rank ever
#10,439
2025

Regulus by the numbers

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

As a boy's name

Rank in 2025
#10,439
Trend vs 5 yrs ago
New entry
Best rank ever
#10,439
2025
Peak year
2025
7 that year
First recorded
2021
Last recorded
2025
All-time count
18
Count in 2025
7

Names similar to Regulus

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

RegoryRegginalReguloRegionalRegnialdRegenalRegnaldRegionRegnoldCaelusRegenaldCarolusNikalusWillusPaulusDaedalusNicklusCaylusRegiRegionaldDouglusNihilusReggyNichalus

Sibling names for Regulus

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 Regulus

Top names of 2025, Regulus's peak yearThe 2020s in fullOther names that peaked in 2025Boys' names starting with R