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Reginaldo

#10,437 in 2025Boys' name

Form of Reginald

Reginaldo has been given to 414 babies in the U.S. since 1918. In 2025 it ranked #10,437 of 13,926 boys’ names in use. Its peak year was 1991, with 15 recorded.

Babies named Reginaldo, 2025

1 in 474,000

Reginaldo over time, 1880–2025

Boys
05101518801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Reginaldo: meaning, origin, and history

Form of Reginald

Deeper origin not confirmed in the cited records

What Reginaldo means

Reginaldo is a form of Reginald.

Meaning behind the documented name family

The name developed through Reginaldo → Reginald → *Raginawaldaz. The family’s meaning is “decision, advice, counsel + ruler”, recorded in Proto-Germanic with the source elements raginą and waldaz.

Origin, language, and formation

Reginaldo is used in Italian.

Related names and everyday forms

Related names include Reginald.

American usage and historical context

In the United States, 414 boys were recorded with the name Reginaldo between 1918 and 2025. Its highest annual count was 15 in 1991; its best national rank was #3,120 in 1954.

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 Reginaldo?

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
#10,437
of 13,926 boys’ names in use
Coin-flip room size
328,272 kids
Even odds of a second one

Where Reginaldo 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 Reginaldo. In a class of 30 the chance is Under 1%.

When Reginaldos were born

Half of everyone ever recorded as Reginaldo was born before 1987 — so the typical Reginaldo is around 38 today.

Median birth year
1987
About 38 years old
Biggest decade
1990s
21.3% of all use
Born in the last 25 years
20.5%
Spread across generations
Recorded since 1950
381
People you could plausibly meet
Choose a decade

1990s — 21.3% of all recorded uses (88).

Is Reginaldo 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
46.7%
Peak was 1991 (15)
Years since peak
34
Years
Year-to-year steadiness
Volatile
29.5% average annual change
Best rank ever
#3,120
1954

Spellings of Reginaldo

Reginaldo is not the most common spelling — Reginald is, with 77.9% against Reginaldo's 0.29%.

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.

Where Reginaldo is used

Across 1910–2025, Reginaldo was most concentrated in California — about 1 in — boys, against 1 in 548,146 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2Texas1 in —

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Reginaldo has too little recent state data to map, so this covers all years from 1910.

Reginaldo around the world

Where Reginaldo ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • France
    1972–1972
    #2,170
    in 1972
  • South Australia
    1969–1969
    #510
    in 1969

Popularity data from Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.

Reginaldo by the numbers

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

As a boy's name

Rank in 2025
#10,437
Trend vs 5 yrs ago
New entry
Best rank ever
#3,120
1954
Peak year
1991
15 that year
First recorded
1918
Last recorded
2025
All-time count
414
Count in 2025
7

Names similar to Reginaldo

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

ReginoldRegginaldArchivaldoDonaldoReginoRivaldoRomualdoRegionaldReginaOsualdoRegenaldReinaldoArnaldoGeraldoRinaldoRaynaldoReginalRegulusRumaldoLeopoldoRenaldoRegnaldOsbaldoRegniald

Sibling names for Reginaldo

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 Reginaldo

Top names of 1991, Reginaldo's peak yearThe 1990s in fullOther names that peaked in 1954Boys' names starting with R