Recorded 2009–2017 Boys' name Peak 2011 31 births

Sebastyn — boys' name

31 babies named Sebastyn in U.S. Social Security records since 2009, with the highest year being 2011. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

2000s62010s25

The verdict

31 boys have been named Sebastyn since 2009, peaking in the 2010s, last recorded in 2017.

31
total births
2009–2017
years on record
2010s
peak decade
81%
born in that decade
2010s
Peak decade

81% of everyone ever named Sebastyn was born in this single decade.

2011
Single peak year

9 babies were named Sebastyn in 2011 — its busiest year on record.

What the Data Says About Sebastyn

The Social Security Administration has registered 31 babies named Sebastyn between 2009 and 2017, spanning 9 consecutive years of U.S. birth records. As a boy's name, Sebastyn currently falls outside the top 1,000 boys' names for 2017. The name reached its historical peak in 2011, when 9 babies received it in a single year.

Decade-level aggregation shows that Sebastyn performed strongest in the 2010s, accumulating 25 births during that ten-year window. Across the 2 decades of recorded activity, Sebastyn shows a stable profile with only moderate drift from its peak decade.

No etymological entry is currently available for Sebastyn in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 31 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Sebastyn at a glance

Last recorded 2017

Total births

31

Since 2009

9 years of records

Peak year

2011

9 births that year

Strongest decade: 2010s

Current rank

Unranked

Outside the modern top-1,000

As of 2017

Active since

2009

Recorded for 9 years

Last year on file: 2017

Sebastyn popularity over time

Annual U.S. births registered with the Social Security Administration · 2017–2009

Last recorded 2017
Peak year (2011)
9
Annual births at peak — across 9 years of records
45678910 20172015201320112009 6

Sebastyn by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 2010s
Peak decade
2010s
25 births that decade — 81% of Sebastyn's all-time total
2000s62010s25

Frequently Asked Questions

How popular is the name Sebastyn?
31 babies have been named Sebastyn since 2009. It was last recorded in 2017. The peak year was 2011 with 9 births.
When was Sebastyn most popular?
Sebastyn was most popular in the 2010s decade with 25 total births. The single peak year was 2011.
How long has the name Sebastyn been used?
Sebastyn has been recorded in Social Security data since 2009, spanning 9 years of data through 2017.
What names are similar to Sebastyn?
Names with a similar sound or spelling include Sebastian, Sebastien, Sebastiano, Sebastion, and 4 more. These share a common prefix and are also used for boys.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 2009–2017 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.