MallowbyNames

William

WIL-yum · From the Germanic Willahelm, composed of wil, "will, desire", and helm, "helmet, protection".

2025 rank (boys)
#9
Babies named in 2025
10,545
Peak popularity
1880
2025 frequency
1 in 162 boys
Usually for
Boys
Trend
Declining since 1985

Declining since 1985, #9 for boys today.

Popularity of William since 1880

Babies named William per year in U.S. Social Security records. Raw births topped out in 1947, but relative to how few babies were recorded back then, William's real moment was 1880.

22.3k44.7k67k1880192019602000Most births 1947Boys
Data table (by decade)
DecadeBoys
1880s84,881
1890s72,244
1900s69,320
1910s303,017
1920s512,402
1930s416,730
1940s556,478
1950s591,228
1960s421,433
1970s283,401
1980s248,277
1990s217,822
2000s194,415
2010s159,981
2020s68,067

Meaning & origin

No boys' name in the English-speaking world has a longer winning streak. Brought to England by William the Conqueror in 1066, built from Germanic wil ("will") and helm ("helmet, protection"), William spent centuries as the island's most common male name and crossed the Atlantic with the same authority: it sits near the top of the very first Social Security cohort in 1880, technically its peak year, and has never left the American top 20 since.

The 2025 figures show the streak intact: 9th place, about 1 in 162 newborn boys, strongest in Wyoming, the District of Columbia, and Alaska. The digest marks it as falling since 1985, which is true only in the gentlest sense, William's "decline" has been a slow drift within the top 10 while trendier names rise and burn out around it.

Its secret is modularity. Will, Billy, Bill, Willie, and Liam are effectively five different names sharing one birth certificate, and Liam, the Irish short form, has lately outranked William itself at the top of the charts. Shakespeare, Faulkner, and a future king keep the reference points fresh in every generation.

William unites two Germanic elements: wil, "will" or "desire", and helm, "helmet, protection". The Normans brought it to England in the person of William the Conqueror in 1066, and its adoption was so total that within a century it had displaced native Anglo-Saxon names to become the most common male name in England, a position it traded with John for the better part of eight hundred years. Continental cousins include the German Wilhelm, Dutch Willem, French Guillaume, and Spanish Guillermo. In American Social Security data William ranks near the very top in 1880, the first year of records, and has never once left the national top 20, a run of continuity no other boys' name quite matches.

Read more: William on Wikipedia

Where William is most popular

Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k boystoo few births

William” around the world

Where William lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • France

    540

    babies in 2024

  • Ireland

    #73

    in 2025

  • New Zealand

    #16

    in 2025

  • Quebec

    #6

    in 2025

  • Australia (NSW)

    #11

    in 2025

Sources: INSEE (France) · CSO Ireland (Ireland) · NZ Dept of Internal Affairs (New Zealand) · Retraite Québec (Quebec) · NSW Registry of BDM (Australia (NSW)).

Nicknames & variants

Nicknames: Will, Bill, Billy, Liam, Willie

Variants: Liam, Wilhelm, Willem, Guillaume, Guillermo

Famous people named William

Sibling names for William

Names that share William's style, for a brother or sister.

Sisters: Elizabeth, Charlotte, Katherine, Margaret, Caroline, Eleanor, Emily, Emma, Adelaide, Alexandra, Ann, Anna, Annabelle, Anne, Audrey, Barbara, Carol, Catherine, Clare, Constance, Dawn, Debra, Diana, Diane, Dorothea, Elinor, Elisabeth, Ellen, Georgia, Harriet, Harriett, Helen, Isabelle, Jacqueline, Jane, Janice, Jennie, Joann, Joanne, Judith, Katharine, Kathryn, Lillie, Madeline, Marian, Mary, Maryann, Meghan, Patricia, Robin, Sandra, Susan, Victoria, Virginia, Aileen, Alexandrea, Anabella, Anabelle, Annabel, Annabell, Annalise, Annalyse, Annamae, Bertie, Bettye, Carlyn, Carolynn, Catharine, Cathrine, Cathryn, Christene, Christiana, Dona, Emmaline, Evelin, Evelynn, Fanny, Fredericka, Georganne, Georgeanna, Georgiana, Georgianna, Georgina, Harriette, Henrietta, Janette, Jannette, Jaqueline, Jenette, Joellen, Johanna, Johnette, Julianna, Kathern, Katheryn, Kathrine, Kathryne, Katie, Libby, Lilian, Lilliann, Lillianna, Lizabeth, Louisa, Madeleine, Margarette, Margret, Margurite, Mariann, Marjory, Marry, Maryanne, Marybelle, Maryjane, Nanci, Pamala, Patrica, Rosalee, Rosanne, Roseann, Roseanna, Roseanne, Rosemarie, Ruthann, Sarabeth, Sofie, Suzanna, Tena, Thomasina, Aime, Albertha, Alexsandra, Alise, Ammy, Anabell, Annah, Betsey, Bettyann, Carolyne, Cate, Catheryn, Charolette, Christeen, Christena, Christinia, Dorthea, Elinore, Elizbeth, Elizebeth, Evaline, Female, Frederica, Fredricka, Gaynelle, Georgann, Georganna, Georgiann, Georgianne, Georgine, Irine, Isobel, Jacalyn, Jacki, Jacquelyne, Janett, Jaquelyn, Jeane, Jeannetta, Joannie, Joeann, Johna, Joye, Katharyn, Katherin, Katheryne, Kathyrn, Lady, Leslye, Lilibeth, Lilie, Lillyan, Lilyanne, Lisabeth, Louanna, Louanne, Madaline, Madelaine, Madelin, Madelynne, Madolyn, Manda, Margarett, Margaretta, Margarite, Margrett, Marijo, Marjean, Maryalice, Maryan, Maryanna, Marye, Maryelizabeth, Marykate, Maryland, Marylin, Marylouise, Marylyn, Marylynn, Nicol, Phyliss, Rosalynn, Rosann, Ruthanne, Suzann, Theressa, Thomasine, Thresa, Tomie, Adelynne, Aimie, Alicen, Alleen, Annaclaire, Annagrace, Annalicia, Annamay, Annarose, Annella, Annelle, Babara, Barbaraann, Betti, Bronte, Caraline, Catherin, Catherina, Cathern, Charlott, Charlotta, Cherylann, Cicily, Clarie, Clarinda, Donnalee, Dorothe, Dorothie, Elizabethann, Ellagrace, Ellamarie, Ellanor, Ellenor, Ellinor, Elnore, Emelin, Emilyann, Emmelyn, Emylee, Evah, Evangelyn, Faythe, Fredrica, Georgeanne, Georgian, Graceann, Graceanne, Helaina, Henryetta, Jacklin, Jacqui, Janneth, Jannett, Jeanann, Jenavieve, Jennavieve, Jenne, Jennett, Jenney, Jessye, Joane, Joeanna, Joellyn, Joesphine, Johnelle, Johnita, Joice, Jone, Katerine, Katherene, Kathren, Katty, Liliann, Lilliam, Lillyanne, Lindia, Lisaann, Lisanne, Lizbet, Lizzeth, Louellen, Madalyne, Madalynne, Madeliene, Magaret, Magdalyn, Mame, Margart, Margeret, Margert, Margreat, Margretta, Mariellen, Marrie, Marybel, Marybell, Maryclaire, Maryfrances, Maryhelen, Maryjean, Marykathryn, Meribeth, Nancey, Nancye, Patrecia, Robina, Rosaleigh, Salley, Sallyann, Sallye, Sammye, Saralynn, Sophy, Tamsen, Threasa, Tinamarie, Viviann, Wallis, Wanna, Willamina, Willena, Williemae, Windsor, Yennifer, Abagale, Abbegail, Alizon, Ameilia, Anabeth, Annamary, Annasophia, Annet, Annlee, Barbar, Barbarann, Beverely, Carolynne, Carrolyn, Cathe, Catheryne, Charlett, Charolett, Claramae, Donne, Dorothye, Edla, Elanore, Eliabeth, Elizibeth, Ellamae, Elleanor, Ellenore, Elysabeth, Emilyanne, Emmajane, Emmakate, Emmalene, Emmalise, Emmalyne, Evalynne, Evellyn, Georgana, Georgeann, Hellena, Hendy, Jackline, Jackquelyn, Jacoba, Jacqualine, Jaine, Jannet, Jannetta, Jenie, Jeorgia, Joanette, Johnice, Jolane, Josephene, Josphine, Judithann, Judyann, Juliah, Juliett, Jullie, Junice, Karolynn, Kathlean, Kathrina, Konstance, Lillias, Lillieann, Lorianne, Lylian, Lynnmarie, Madaleine, Madelein, Maie, Maragret, Margaretann, Margareth, Margaretmary, Margarie, Marguarite, Marieann, Marilouise, Marrianne, Maryclare, Maryella, Marykatherine, Maryln, Marymargaret, Marynell, Maryrose, Maryruth, Matha, Morene, Para, Patrici, Patriciaann, Roann, Rosamund, Rosene, Rozalynn, Saraann, Sharlie, Sharlotte, Sophiamarie, Stephenia, Susa, Theresea, Thomasa, Thomasene, Vicktoria, Willean, Willye, Annebelle, Arabela, Lilibet, Loisann, Lucyann, Marialice, Merie, Rosell, Sophiarose, Alexandrya, Alexea, Alisabeth, Amybeth, Anniebell, Barbarajean, Barbee, Beatric, Bellagrace, Bessy, Bettymae, Beverlyann, Cahterine, Carolan, Caterin, Catherene, Charlissa, Charlottie, Christean, Christna, Cythnia, Daisee, Dorethia, Dorothia, Dorothyann, Eleaner, Elener, Eliz, Elizabella, Elizabelle, Elizabth, Elizebath, Ellakate, Ellanore, Elleen, Elliemay, Ellierose, Ellinore, Ellizabeth, Elynore, Emmabelle, Evalin, Eveleigh, Georgean, Gerrianne, Helyne, Isbella, Isobella, Janann, Janeann, Jeananne, Jennavie, Jennet, Jerriann, Jillann, Joeanne, Johnnette, Joyanne, Judianne, Judythe, Kateryn, Kathelene, Katheren, Kathreen, Kathrene, Kathyann, Kitti, Laurali, Laurey, Libbey, Lillan, Lilliane, Lillieanna, Lillion, Lizann, Lizbett, Louiza, Lysbeth, Maddeline, Margeart, Marijean, Marjarie, Marthella, Marybella, Marylynne, Oliviarose, Pattiann, Peggyann, Phillipa, Ritamarie, Rosemae, Rosemaria, Ruthmary, Scarlettrose, Secilia, Suzzane, Victora, Victoriah, Viriginia, Williette, Wilmary, Zoeann

Brothers: Henry, James, Charles, Thomas, Edward, Alexander, Benjamin, John, Robert, Samuel, Donald, Doug, Frederick, Fredrick, George, Jean, Joan, Johnie, Johnnie, Jon, Laurence, Peter, Philip, Phillip, Richard, Stuart, Alexzander, Brigham, Chas, Clovis, Davy, Edmund, Garret, Gean, Geoffrey, German, Hamilton, Harris, Johnson, Little, Rob, Robb, Russel, Stewart, Theadore, Toney, Alexsander, Authur, Benjamen, Douglass, Eliott, General, Geoff, Giles, Godfrey, Green, Henery, Jamieson, Jhon, Joeseph, Johney, Junious, Keneth, Kenith, Lawrance, Matthews, Nicholaus, Nicklaus, Nickolaus, Phillips, Rich, Richmond, Sumner, Young, Alexandar, Andrews, Aurthur, Baldwin, Boy, Bright, Carlous, Carlus, Charls, Donnald, Donold, Edwards, Elija, Fleming, Freddrick, Geoffry, Geroge, Hansford, Harrie, Henrry, Hillery, Johnn, Johnney, Jonn, Kennieth, Kennis, Martyn, Nicholi, Nicholis, Nicholos, Pleas, Purcell, Richrd, Rickard, Roben, Roberts, Robet, Robt, Rodgers, Simpson, Son, Steffon, Thomes, Wilmar, Alecsander, Alexande, Alexxander, Anothony, Aurther, Bond, Chales, Chrles, Dougles, Edwar, Flem, Fredick, Gabreal, Geffrey, Gladstone, Goerge, Jamesmichael, Jenkins, Jeoffrey, Jeorge, Johnpatrick, Josph, Kenneith, Mitcheal, Niccolas, Nickoles, Piers, Press, Ralston, Ricahrd, Richad, Richar, Richerd, Robertson, Robi, Sims, Stephenson, Willson, Alecxander, Anthonyjames, Charlies, Jakeob, Maxamillian, Williom, Aaronjames, Alekxander, Alexanderjames, Andrewjames, Bunyan, Charels, Charlis, Crit, Davidlee, Fredderick, Geoge, Jamas, Johnrobert, Jonh, Jusitn, Lawarence, Lc, Nichlos, Nickalos, Nocholas, Richards, Roberth, Rodert, Sircharles, Thoams, Thomos, Thoms, Thos

Names like William

Names whose popularity has moved with William's over the last 50 years.

A parent animal hugging its little one, the personalized name page

W is for William, our favorite little boy.

W is for William…”

In a Mallowby alphabet book, William's letter becomes William's page: hand-illustrated, printed hardcover or paperback, made just for them.

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Questions parents ask

What does William mean?
William comes from the Germanic elements wil, "will, desire", and helm, "helmet, protection", often summarized as "resolute protector", though that gloss smooths over the compound's literal parts.
How popular is William?
William ranked 9th for American boys in 2025, given to about 1 in every 162 boys. Its recorded peak is 1880, the first year of data, and it has never left the national top 20.
What are the nicknames for William?
Will and Billy lead today, Bill dominated the mid-20th century, and Liam, originally the Irish short form, is now the more popular name of the two in the United States.
Is Liam the same name as William?
Yes. Liam began as the Irish short form of Uilliam (William), and has ranked at or near number 1 for American boys in recent years, meaning two of the top 10 boys' names are versions of the same name.
What names go well with William?
The deep classics: Henry, James, or Edward for a brother; Elizabeth, Charlotte, or Eleanor for a sister.