William

#9 in 2025Boys' name

Will + helmet; often resolute protector

William has been given to 4,215,725 babies in the U.S. since 1880. In 2025 it ranked #9 of 13,926 boys’ names in use. Its peak year was 1947, with 67,002 recorded.

Babies named William, 2025

1 in 314

William over time, 1880–2025

BoysGirls
020K40K60K80K18801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

William: meaning, origin, and history

Will + helmet; often resolute protector

Germanic

About William

William is an English name with Germanic roots combining “will” or “desire” with “helmet” or “protection.” Often interpreted as “resolute protector,” it has a long royal and literary history. Will, Bill, Billy, and Liam give its formal spelling several distinct everyday possibilities.

Meaning and origin

The older Germanic form Willehelm contains two elements: willo, referring to will or desire, and helm, meaning helmet. The protective association comes from that second element. “Resolute protector” is a familiar flowing interpretation of the combination.

William belongs to a large international family. German Wilhelm, French Guillaume, Spanish Guillermo, and Italian Guglielmo share its history. Irish Uilliam also belongs to that tradition, with Liam developing as a shorter form and becoming widely used independently.

Norman and royal history

The name became especially prominent in England after William the Conqueror’s victory in 1066. Its association with the first Norman king helped establish William within English naming, and several later kings carried it as well.

That royal history sits alongside a much wider use outside court life. William became an enduring everyday name, passed through families across many generations. Its presence in modern English therefore carries both a formal historical association and the familiarity of an ordinary first name.

Literary connections

William Shakespeare is the name’s most recognizable literary bearer. The playwright, poet, and actor grew up in Stratford-upon-Avon and spent his professional life in London. His plays and poems give William a lasting association with English literature and the theater.

Other literary namesakes include William Blake, William Wordsworth, and William Faulkner. Their work spans different periods and forms of writing, from poetry to the novel. For someone drawn to books, William offers several possible connections rather than a single dominant character or story.

Pronunciation and nicknames

English commonly pronounces William WIL-yum, with the emphasis on the first syllable. Some speakers articulate the middle more fully, producing a three-syllable rhythm. The full name begins softly and ends with an m sound, making it less abrupt than Will.

Will is a direct shortening with a simple, one-syllable sound. Bill changes the opening consonant, and Billy adds a more informal second syllable. Liam has a different rhythm again, beginning with the part heard near the end of William. The range allows the same formal name to support quite different everyday introductions.

Style and similar names

William fits naturally beside James, Henry, and Edward. Each offers a long English history and a formal name with familiar shorter options. Willa is a feminine relative for someone interested in preserving a connection to the William family.

American usage and historical context

William ranked #9 for boys in the United States in 2025, with 10,545 recorded births. Its annual count peaked at 67,002 in 1947. The name remains a frequent contemporary choice despite being far less concentrated among newborns than it was at that midcentury peak.

Sources & methodologyReferences, data & attribution

The references below support the meaning and historical connections. American popularity figures use published Social Security Administration records for this 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 William?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 314
10,545 of 3,315,165 births
Among boys only
1 in 162
0.62% of boys
Rank, 2025
#9
of 13,926 boys’ names in use
Coin-flip room size
219 kids
Even odds of a second one

Where William 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 206%
Class of 309%
Grade of 10027%
School of 50080%~1.6 kids

Put another way: gather 219 children born in 2025 and it's an even bet that one of them is another William. In a class of 30 the chance is 9%.

When Williams were born

Half of everyone ever recorded as William was born before 1951 — so the typical William is around 74 today.

Median birth year
1951
About 74 years old
Biggest decade
1950s
14.1% of all use
Born in the last 25 years
9.6%
Mostly a past generation
Recorded since 1950
2,184,624
People you could plausibly meet
Choose a decade

1950s — 14.1% of all recorded uses (591,228).

Is William 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
+1
Places climbed
Rank vs 5 years ago
−4
Places dropped
Rank vs 10 years ago
−4
Places dropped
Births vs 10 years ago
0.66×
Fewer babies than then
Share of its own peak
15.7%
Peak was 1947 (67,002)
Years since peak
78
Years
Year-to-year steadiness
Very steady
3.2% average annual change
Best rank ever
#2
1880

Spellings of William

William is the most-used spelling, taking 89.3% of the 4,702,220 babies given a near-identical spelling.

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 William is used

Across 2016–2025, William was most concentrated in District of Columbia — about 1 in 53 boys, against 1 in 120 across all states with data. It was least common in California (1 in 187).

5351,873 per 100,000

Most concentrated

  1. 1District of Columbia1 in 53
  2. 2Wyoming1 in 57
  3. 3Alabama1 in 62
  4. 4Vermont1 in 66
  5. 5Mississippi1 in 69
  6. 6South Carolina1 in 70
  7. 7New Hampshire1 in 71
  8. 8Montana1 in 75

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.

Geographically, William is used remarkably evenly across the country — more concentrated than 4% of the names used widely enough to compare. See the most regional names

William around the world

Where William 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
    1996–2025
    #25
    in 2025
  • Scotland
    1974–2025
    #52
    in 2025
  • Northern Ireland
    1997–2025
    #59
    in 2025
  • Ireland
    1964–2025
    #73
    in 2025
  • France
    1900–2025
    #126
    in 2025
  • Norway
    1880–2025
    #3
    in 2025
  • Canada
    1991–2024
    #5
    in 2024
  • South Australia
    1944–2013
    #2
    in 2013
  • New South Wales
    1952–2025
    #11
    in 2025

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Institut national de la statistique et des études économiques, Statistics Norway, Statistics Canada, Consumer and Business Services (South Australia) and NSW Registry of Births, Deaths & Marriages. ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, SSB, CBS SA, NSW BDM data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Notable people named William

People whose public names include William, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

William in other languages

Cross-language forms and variants of William. Linked forms have their own page here.

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

William by the numbers

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

As a boy's name

Rank in 2025
#9
Trend vs 5 yrs ago
Down 4
Best rank ever
#2
1880
Peak year
1947
67,002 that year
First recorded
1880
Last recorded
2025
All-time count
4,199,696
Count in 2025
10,545

As a girl's name

Rank in 2025
#13,111
Trend vs 5 yrs ago
Down 5,170
Best rank ever
#281
1883
Peak year
1928
348 that year
First recorded
1880
Last recorded
2025
All-time count
16,029
Count in 2025
7

Names similar to William

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

Names with a curve like William

Not spelling — timing. These names rose, peaked and faded in the same years as William, so they read as being from the same moment even when they look nothing alike.

Sibling names for William

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 William