Recorded 1988–2009 Boys' name Peak 1997 25 births

Wiiliam — boys' name

25 babies named Wiiliam in U.S. Social Security records since 1988, with the highest year being 1997. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1980s51990s82000s12
2000s
Peak decade

48% of everyone ever named Wiiliam was born in this single decade.

1997
Single peak year

8 babies were named Wiiliam in 1997 — its busiest year on record.

What the Data Says About Wiiliam

The Social Security Administration has registered 25 babies named Wiiliam between 1988 and 2009, spanning 22 consecutive years of U.S. birth records. As a boy's name, Wiiliam currently falls outside the top 1,000 boys' names for 2009. The name reached its historical peak in 1997, when 8 babies received it in a single year.

Decade-level aggregation shows that Wiiliam performed strongest in the 2000s, accumulating 12 births during that ten-year window. Across the 3 decades of recorded activity, Wiiliam shows a stable profile with only moderate drift from its peak decade.

No etymological entry is currently available for Wiiliam 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 25 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.

Wiiliam at a glance

Last recorded 2009

Total births

25

Since 1988

22 years of records

Peak year

1997

8 births that year

Strongest decade: 2000s

Current rank

Unranked

Outside the modern top-1,000

As of 2009

Active since

1988

Recorded for 22 years

Last year on file: 2009

Wiiliam popularity over time

Annual U.S. births registered with the Social Security Administration · 2009–1988

Last recorded 2009
Peak year (1997)
8
Annual births at peak — across 22 years of records
456789 2009200119971988 5

Wiiliam by decade

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

Peak: 2000s
Peak decade
2000s
12 births that decade — 48% of Wiiliam's all-time total
1980s51990s82000s12

Frequently Asked Questions

How popular is the name Wiiliam?
25 babies have been named Wiiliam since 1988. It was last recorded in 2009. The peak year was 1997 with 8 births.
When was Wiiliam most popular?
Wiiliam was most popular in the 2000s decade with 12 total births. The single peak year was 1997.
How long has the name Wiiliam been used?
Wiiliam has been recorded in Social Security data since 1988, spanning 22 years of data through 2009.

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, 1988–2009 (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.