Recorded 2005–2013 Boys' name Peak 2009 21 births

Wylliam — boys' name

21 babies named Wylliam in U.S. Social Security records since 2005, with the highest year being 2009. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

2000s162010s5
2000s
Peak decade

76% of everyone ever named Wylliam was born in this single decade.

2009
Single peak year

6 babies were named Wylliam in 2009 — its busiest year on record.

What the Data Says About Wylliam

The Social Security Administration has registered 21 babies named Wylliam between 2005 and 2013, spanning 9 consecutive years of U.S. birth records. As a boy's name, Wylliam currently falls outside the top 1,000 boys' names for 2013. The name reached its historical peak in 2009, when 6 babies received it in a single year.

Decade-level aggregation shows that Wylliam performed strongest in the 2000s, accumulating 16 births during that ten-year window. Across the 2 decades of recorded activity, Wylliam shows a clear decline from its mid-century high.

No etymological entry is currently available for Wylliam 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 21 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.

Wylliam at a glance

Last recorded 2013

Total births

21

Since 2005

9 years of records

Peak year

2009

6 births that year

Strongest decade: 2000s

Current rank

Unranked

Outside the modern top-1,000

As of 2013

Active since

2005

Recorded for 9 years

Last year on file: 2013

Wylliam popularity over time

Annual U.S. births registered with the Social Security Administration · 2013–2005

Last recorded 2013
Peak year (2009)
6
Annual births at peak — across 9 years of records
4.555.566.5 2013200920082005 5

Wylliam by decade

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

Peak: 2000s
Peak decade
2000s
16 births that decade — 76% of Wylliam's all-time total
2000s162010s5

Frequently Asked Questions

How popular is the name Wylliam?
21 babies have been named Wylliam since 2005. It was last recorded in 2013. The peak year was 2009 with 6 births.
When was Wylliam most popular?
Wylliam was most popular in the 2000s decade with 16 total births. The single peak year was 2009.
How long has the name Wylliam been used?
Wylliam has been recorded in Social Security data since 2005, spanning 9 years of data through 2013.
What names are similar to Wylliam?
Names with a similar sound or spelling include Wylie, Wylder, Wylee, Wyland, 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, 2005–2013 (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.