Twin names for William
Looking for a twin name for William? The list is ranked by how well each name matches William on style, length and first letter — and how firmly it avoids rhyming.
Boy twin names for William
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Henry 95
HEN-ree
Ruler of the home and sovereign leader
Carries the meaning "ruler of the home and sovereign leader"; a Top 10 name, current and widely used.
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David 93
DAY-vid
Beloved one, cherished and deeply loved
A different ending sound from William; Hebrew where William is Germanic — a mix.
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Michael 89
MY-kəl
Who is like God? Humble strength
About the same length on the page as William; has Mike and Mickey as short forms.
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Daniel 88
DAN-yəl
God is my judge; upright and just
More vowels than consonants — an easy, open sound; the same classic and timeless feel as William.
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Joseph 86
JOH-zəf
He will add; fruitful and dedicated
Well-known but not in the very top handful; opens on "J" against William's "W".
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Thomas 83
TOM-əs
Twin; steadfast companion and honest seeker
Fewer letters on the page than William; shortens to Tom and Tommy.
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Charles 79
CHARLZ
Free man of noble character
Consonant-forward, so it lands with a bit of edge; a crisp consonant start.
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James 75
JAYMZ
Supplanter; one who follows and perseveres
Royal and classic, matching William; starts with "J", not William's "W", so the two never blur.
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Ethan 73
EE-thən
Strong, firm, enduring, and steadfast
Finishes on a soft "-n"; the same classic feel as William.
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Santiago 71
sahn-tee-AH-go
Saint James; historic traveler and saint
More letters on the page than William; a Top 100 name, familiar without being everywhere.
Girl twin names for William
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Emma 96
EM-uh
Universal, whole, and boundless strength
Classic and timeless, matching William; trails off on a soft "a".
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Charlotte 91
SHAR-lət
Free person of petite grace and royal poise
Sits at William's level of popularity; shortens to Charlie and Lottie.
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Olivia 83
oh-LIV-ee-uh
Olive tree; ancient emblem of peace and flourishing life
Latin where William is Germanic — a mix; a fuller name of 4 syllables.
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Abigail 81
AB-ih-gayl
Father's joy; bringer of infectious gladness
Starts with "A", not William's "W", so the two never blur; more vowels than consonants — an easy, open sound.
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Sophia 78
soh-FEE-uh
Wisdom, clarity of thought, and divine knowledge
Carries the meaning "wisdom"; neither name stands out next to the other.
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Ava 76
AY-vuh
Life, living water, and soaring bird
The same classic feel as William; begins with an open vowel.
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Eleanor 74
EL-uh-nor
Bright, shining light and radiant courage
Sits at the same width as William written down; vowel-heavy, so it flows rather than clips.
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Elizabeth 73
eh-LIZ-uh-bəth
Pledged to God; enduring regal heritage
An open vowel start after William's harder finish; no doubt it is the sister name.
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Lily 71
LIL-ee
Pure white lily flower; renewal and innocence
Shortens to Lil; opens on "L" against William's "W".
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Chloe 69
KLOH-ee
Blooming greenery, springtime fertility and fresh shoots
Brings Greek roots alongside William's Germanic ones; means "blooming greenery".
Reading the scores
Scores run about 5 to 99 and rank how well each twin name pairs with William — a shared style lifts it, a rhyme or a shared first letter drops it. How the score works. William and Henry is a clean match on every one of those checks.
See also: middle names for William · sibling names for William
Common questions
What twin name goes with William?
Matched same-sex options: Henry, David, Michael, Daniel.
For a girl twin: Emma, Charlotte, Olivia, Abigail. All share William's style and syllable count but start with a different letter.
Should twin names match more than sibling names?
A little. Twins are introduced together for life, so names that sound alike and share a style work well — but names that rhyme (William with a near-rhyme) sound like a comedy act, so they get marked down hard here.
Why do distinct initials matter for a twin of William?
School registers, medical forms and camp lists often go by first initial and surname. A twin of William whose name also starts with "W" gets mixed up with William on paper for years, so the twin score rewards a different first letter.
Where does the data come from?
William's rank and the ranks of the twin names above come from US Social Security Administration records; how well each pairs with William on style, length and sound is scored by NamePairings — see the how-we-score page.