Sebastiaan

Boys' name

From Latin Sebastianus; literal meaning unconfirmed

Sebastiaan has been given to 47 babies in the U.S. since 2000. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 2008, with 7 recorded.

Babies named Sebastiaan, 2016

1 in 734,000

Sebastiaan over time, 1880–2025

Boys

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Sebastiaan: meaning, origin, and history

From Latin Sebastianus; literal meaning unconfirmed

Deeper origin not confirmed in the cited records

What Sebastiaan means

Sebastiaan is a given name.

Origin, language, and formation

Sebastiaan is used in Dutch.

Sebastiaan comes through Latin Sebastianus.

American usage and historical context

In the United States, 47 boys were recorded with the name Sebastiaan between 2000 and 2016. Its highest annual count was 7 in 2008; its best national rank was #10,433 in 2015.

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 Sebastiaan?

Sebastiaan had fewer than 5 recorded uses in 2025, so these figures use 2016, the last year it was published.

Among all babies, 2016: 1 in 734,000; 5 of 3,669,531 births
Among boys only: 1 in 380,000; <0.01% of boys
Rank, 2016: Unranked; Fewer than 5 uses
Coin-flip room size: 508,706 kids; Even odds of a second one

Where Sebastiaan 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 2016 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 508,706 children born in 2016 and it's an even bet that one of them is another Sebastiaan. In a class of 30 the chance is Under 1%.

When Sebastiaans were born

Half of everyone ever recorded as Sebastiaan was born before 2010 — so the typical Sebastiaan is around 15 today.

Median birth year: 2010; About 15 years old
Biggest decade: 2010s; 51.1% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 47; People you could plausibly meet

Choose a decade

2010s — 51.1% of all recorded uses (24).

Is Sebastiaan 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: 0%; Peak was 2008 (7)
Years since peak: 17; Years
Year-to-year steadiness: Volatile; 25.7% average annual change
Best rank ever: #10,433; 2015

Spellings of Sebastiaan

Sebastiaan is not the most common spelling — Sebastian is, with 95.3% against Sebastiaan's 0.02%.

Sebastian95.3%218,055
Sebastien1.8%4,057
Sabastian1.6%3,671
Sebastiano0.44%1,005
Sebastion0.41%937
Sevastian0.24%539
Sebastain0.22%510
Sebastiaan0.02%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.

Sebastiaan around the world

Where Sebastiaan 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.

England & Wales
1996–2016
#4,810
in 2016
South Australia
2009–2009
#708
in 2009

Popularity data from Office for National Statistics and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. CBS SA data under CC BY 4.0.

Sebastiaan by the numbers

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

As a boy's name

Rank in 2025: Unranked
Trend vs 5 yrs ago: —
Best rank ever: #10,433; 2015
Peak year: 2008; 7 that year
First recorded: 2000
Last recorded: 2016
All-time count: 47
Count in 2025: Under 5

Names similar to Sebastiaan

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

Sibling names for Sebastiaan

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

For a sister

Jaylen Yamilet Dalilah Desire Jaidyn Kalia Abagail Rihanna

For a brother

Kaeden Gavyn Tyshawn Marley Aditya Aydan Aydin Javion

Explore around Sebastiaan

Top names of 2008, Sebastiaan's peak year The 2000s in full Other names that peaked in 2015 Boys' names starting with S Uncommon Dutch Boy Names