Head to head · Girls' names
Bonnie vs Brynn
#396 vs #407 in 2025
Bonnie is a whisker ahead (#396 vs #407 in 2025), but the curves point different ways: Bonnie is back after a long quiet spell, Brynn is stepping back from its peak.
Cast your vote
Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
The tale of the tape
On the charts, Bonnie leads 6 measures of 6; Brynn leads 0.
Ranks, counts and years are measured in the official US birth record; the classroom and living figures are estimates computed from it. The dot marks the side each measure favours on the charts — more common, not better.
What the records say
146 years of US births, drawn on one scale
Two curves, one scale
Who owned which decade
- 1880s: Bonnie #339, Brynn — — Bonnie higher
- 1890s: Bonnie #233, Brynn — — Bonnie higher
- 1900s: Bonnie #197, Brynn — — Bonnie higher
- 1910s: Bonnie #178, Brynn — — Bonnie higher
- 1920s: Bonnie #117, Brynn — — Bonnie higher
- 1930s: Bonnie #66, Brynn — — Bonnie higher
- 1940s: Bonnie #35, Brynn #3268 — Bonnie higher
- 1950s: Bonnie #50, Brynn #4213 — Bonnie higher
- 1960s: Bonnie #92, Brynn #3785 — Bonnie higher
- 1970s: Bonnie #176, Brynn #3274 — Bonnie higher
- 1980s: Bonnie #229, Brynn #927 — Bonnie higher
- 1990s: Bonnie #570, Brynn #1013 — Bonnie higher
- 2000s: Bonnie #1150, Brynn #435 — Brynn higher
- 2010s: Bonnie #918, Brynn #257 — Brynn higher
- 2020s: Bonnie #498, Brynn #381 — Brynn higher
Bonnie stood higher in 12 of 15 decades; Brynn has held the lead since the 2000s.
Rank by decade
| Decade | Bonnie | Brynn |
|---|---|---|
| 1880s | #339 | — |
| 1890s | #233 | — |
| 1900s | #197 | — |
| 1910s | #178 | — |
| 1920s | #117 | — |
| 1930s | #66 | — |
| 1940s | #35 | #3268 |
| 1950s | #50 | #4213 |
| 1960s | #92 | #3785 |
| 1970s | #176 | #3274 |
| 1980s | #229 | #927 |
| 1990s | #570 | #1013 |
| 2000s | #1150 | #435 |
| 2010s | #918 | #257 |
| 2020s | #498 | #381 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
Around the world
Bonnie
- England & Wales#16
- Scotland#32
Brynn
Not charting outside the US.
National statistics offices, latest published year.
The names themselves
Meaning, roots, sound and the people who carried each
Where each name comes from
Bonnie
pretty, fine, good-looking
The Scots word, still in everyday use in Scotland, where a bonnie day and a bonnie lass are ordinary phrases rather than quaint ones.
bon → bonnie → Bonnie
How it traveled
Margaret Mitchell's novel appeared in 1936, and in it Rhett Butler's daughter is given a formal name nobody uses and a nickname everybody does. Within a few years American girls were being christened Bonnie outright, with no formal name behind it, which is the reverse of how the name works in Scotland.
Brynn
hill (Welsh)
Welsh bryn is an ordinary landscape word, still in everyday use, and it sits inside longer names such as Brynmor, 'great hill'. The doubled -nn is an English-language respelling rather than a separate word.
bryn (Welsh for hill) → Bryn → Brynn
How it traveled
The root is the common Welsh noun bryn, hill, which is why it turns up so often on maps: Bryn Mawr, 'big hill', Brynmawr in Gwent, and the Pennsylvania Bryn Mawr that Welsh settlers named after a farm back home. As a personal name, Bryn was taken up in Wales during the twentieth century for boys, sometimes as a short form of Brynmor.
Where a reading is contested the note says so — this page does not turn a guess into a fact. The chain is each name's recorded forms, oldest first; the story is its opening, told in full on the name's own page.
Out loud, and in short
Bonnie
BON-ee
Two syllables, weight at the front, the first with the vowel of on. Said the same way in Scotland, America and England, which is rare.
- Bon — Cut to one syllable; used inside families and rarely written.
- Bonnie Lou — A double form common in the American South, used as one unit rather than a name and a nickname.
- Nonnie — A childhood form built from the middle of the name.
Brynn
BRIN
Rhymes with win. The Welsh y in bryn is a short i, so the English and Welsh pronunciations agree; there is no second syllable and no ambiguity to explain.
- Bryn — The single-n spelling used as an informal shortening; also a standalone given name, chiefly for men in Wales.
- Brynnie — Affectionate family form, mostly used with young children rather than in adult or formal settings.
- B — Initial-only, used the way any single-syllable name gets reduced among friends.
Is it right for you
The differences that decide it, laid out by what you want
Choose by what you want
Choose Bonnie if you want…
- a name most people already know#396 in 2025, 785 babies that year
- a name on the way upup 210 places on the charts in five years
- a name with more sound in itBonnie runs 2 syllables, Brynn 1
- a name that charts abroad tooBonnie is on the national lists of England & Wales and Scotland
Choose Brynn if you want…
- a name fewer children share#407 in 2025 — brynn will almost certainly be the only one in school
- a name past its most crowded yearsBrynn is stepping back from its peak
- a name with fewer syllablesBrynn is 1 syllable to Bonnie's 2
- a newer arrivalBrynn entered the US charts in 1943
Each line is a measured difference between the two names — a rank, a count, a recorded form — never a judgement of either. Save the one that answers your question; it lands on your shortlist.
The trade-offs, name by name
Bonnie
Strengths
- It is spelled as it sounds and needs no explanation in any English-speaking country.
- It also charts in England, Wales and Scotland, so it travels without becoming strange.
- It works as a full name and as a nickname for Bonita or Yvonne, which gives a family two ways to use it.
To consider
- It is closely tied to one novel and one film for anyone over a certain age.
- The spelling is recorded for a small number of boys, though it reads overwhelmingly as a girl's name.
- Bonnie and Clyde is the other association, and it is not going anywhere.
Brynn
Strengths
- One syllable, phonetic, and pronounced the same by English and Welsh speakers alike — nobody has to be corrected twice.
- The meaning is plain and documented: hill, from an ordinary Welsh word still in daily use.
- On American records for generations before it became fashionable, so it is neither new nor tied to one moment.
To consider
- Bryn, Brynn, Brynne and Brinn are all in circulation, so expect to spell it aloud — short work, but a lifelong habit.
- In Wales and among Welsh speakers, Bryn is a man's name. A Brynn traveling in Britain may meet men who share the sound.
- It grew alongside a crowded set of similar openings — Brynlee, Brinley, Brielle — and can be misheard as one of them on a first introduction.
Documented properties of each name — how it spells, travels and shortens — not opinions about the child.
With your last name
Say both in full. The notes are facts about letters and sound — a rhyme, a shared initial, the monogram — not a verdict on either name.
Type a last name to hear Bonnie and Brynn in full.
Weighing the whole shortlist? Run the full comparison — up to eight names with your last name, initials, classroom projections and a printable report.
Decide together
Nobody names a baby alone
Still torn between Bonnie and Brynn?
Put both to the vote.
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More head-to-heads
Same measures, different pair. Sixty more are dealt daily in the arena.
Lists these names appear on
- Vintage names making a comeback
- Hometown favorites: names only one state loves
- Classics hiding in plain sight
- British invasion: UK favorites still rare in the US
- all guides
Where Bonnie and Brynn each sit in the library — alternatives in the same style, ranked by the same records.
Bonnie or Brynn — the short answers
- Which is more popular, Bonnie or Brynn?
- Bonnie, in 2025: Bonnie ranked #396 with 785 babies; Brynn ranked #407 with 767 babies.
- Which name is rising faster, Bonnie or Brynn?
- Bonnie. Over the last five years Bonnie moved up 210 places; Brynn moved down 74 places.
- Which is the older name, Bonnie or Brynn?
- Bonnie was already in use when US records began in 1880; Brynn entered the US charts in 1943. On the American record, Bonnie is the older name.
- How many people are named Bonnie and Brynn?
- About 215,000 people named Bonnie are estimated to be alive in the US today. About 29,500 people named Brynn are estimated to be alive in the US today.
- Will there be other Bonnies or Brynns in the classroom?
- Bonnie will almost certainly be the only one in school. Brynn will almost certainly be the only one in school.
US figures from the Social Security Administration, 1880–2025; international figures from national statistics agencies. Votes are battle voters on this site, not the birth record. Data & methodology
Keep playing
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