Head to head · Girls' names
Hadley vs Hailey
#121 vs #104 in 2025 · both Old English roots
Hailey is a whisker ahead (#104 vs #121 in 2025), but the curves point different ways: Hailey is stepping back from its peak, Hadley is holding its place on the charts. On momentum, Hadley has the edge.
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, Hailey leads 5 measures of 6; Hadley 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
- 1960s: Hadley #5528, Hailey #5980 — Hadley higher
- 1970s: Hadley #3612, Hailey #3478 — Hailey higher
- 1980s: Hadley #2819, Hailey #708 — Hailey higher
- 1990s: Hadley #1535, Hailey #131 — Hailey higher
- 2000s: Hadley #641, Hailey #27 — Hailey higher
- 2010s: Hadley #128, Hailey #54 — Hailey higher
- 2020s: Hadley #115, Hailey #89 — Hailey higher
Hailey stood higher in 6 of 7 decades; Hailey has held the lead since the 1970s.
Rank by decade
| Decade | Hadley | Hailey |
|---|---|---|
| 1960s | #5528 | #5980 |
| 1970s | #3612 | #3478 |
| 1980s | #2819 | #708 |
| 1990s | #1535 | #131 |
| 2000s | #641 | #27 |
| 2010s | #128 | #54 |
| 2020s | #115 | #89 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
Around the world
Hadley
Not charting outside the US.
Hailey
- Canada#60
National statistics offices, latest published year.
The names themselves
Meaning, roots, sound and the people who carried each
Where each name comes from
Hadley
heather clearing, from Old English
The place names behind the surname — Hadley in Shropshire, Hadleigh in Suffolk and Essex — are usually read as Old English hæð 'heath, heather' plus lēah 'clearing, meadow', giving 'clearing in the heather'. For some of these places, scholars instead read the first element as the Old English personal name Hadda, making it 'Hadda's clearing'. Either way, the second half is the same lēah that ends dozens of English names.
hæð + lēah (Old English) → Hadleigh / Hadley (English place name) → Hadley (English surname) → Hadley (given name)
How it traveled
The name starts as land: several English villages called Hadley or Hadleigh, named in Old English for a clearing on heathland, some of them on record by the time of the Domesday survey in the eleventh century. Families who came from those places took the name with them, and by the era of English settlement in North America, Hadley was traveling as a surname on both sides of the Atlantic — it is also the name of a Massachusetts town founded in the seventeenth century.
Hailey
hay clearing, hay meadow
From Old English hēg (hay) and lēah (woodland clearing or meadow) — the source of the Oxfordshire and Hertfordshire villages called Hailey, and of the surnames Hailey and Haley taken from them.
hēg-lēah (Old English) → Hailey (English place name) → Haley / Hailey (surname) → Hailey (given name)
How it traveled
The oldest layer is a landscape word: lēah, an Old English term for a clearing in woodland, joined to hēg, hay — ground cleared and kept for mowing. Settlements with that description were called Hailey, and families who left them carried the place with them as a surname.
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
Hadley
HAD-lee
Two syllables, stress on the first, with the flat 'a' of 'had'. Almost no one hesitates over it in English — the difficulty is spelling, not saying.
- Haddie — The most common affectionate short form; used at home rather than on paperwork.
- Hads — Casual, mostly among friends and siblings.
- Had — A blunt one-syllable clip, more often heard from family than from classmates.
- Lee — Drawn from the second syllable; stands on its own as a given name for either sex.
Hailey
HAY-lee
Stress on the first syllable. All the common spellings — Hailey, Hayley, Haley, Hailee — are said exactly the same way, which is why they are so easily confused in writing.
- Hails — The everyday informal short form among friends and family; rarely written on anything official.
- Hay — Casual clipping, usually heard from siblings or close friends rather than used more widely.
- Lee — Drawn from the second syllable; also stands alone as a given name and a middle name in its own right.
One short form, two names
- Hadley and Hailey both shorten to Lee.
Short forms as recorded on each name’s own page. This is here so it is a decision rather than a discovery.
Who has carried each name
Hadley
No documented entry for Hadley yet.
Hailey
Hailey Bieber (b. 1996) — Model and Rhode beauty founder, married to Justin Bieber
Source: Wikidata — the one source on this page that is not an official agency.
Is it right for you
The differences that decide it, laid out by what you want
Choose by what you want
Choose Hadley if you want…
- a name fewer children share#121 in 2025 — hadley will almost certainly be the only one in school
- a name that ages quietlyan estimated 40% chance of feeling dated by 2040, against 81% for Hailey
Choose Hailey if you want…
- a name most people already know#104 in 2025, 2,556 babies that year
- a name past its most crowded yearsHailey is stepping back from its peak
- a name that charts abroad tooHailey is on the national lists of Canada
- a name that feels very nowHailey is stepping back from its peak
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
Hadley
Strengths
- Spelled the way it sounds for English speakers, and needs no explanation of how to say it.
- A documented Old English place-name origin, traceable to real villages and to a long-established surname.
- Has natural short forms — Haddie, Hads, Lee — without requiring any.
To consider
- The spelling has real competition: Hadleigh, Hadlee and Hadly all exist, so expect to confirm it fairly often, especially on the phone.
- It sits in a crowded sound-neighborhood — Harley, Hayley, Haley, Halle — and mishearings between them are common.
- Surname-style girls' names arrived in a distinct wave, and almost everyone carrying this one is still a child, so it may read as belonging to a particular generation later on.
Hailey
Strengths
- Pronunciation is immediate: almost no English speaker hesitates over it, in any of its spellings.
- Hailey is the spelling that became standard in American records, so it is the one clerks and teachers are most likely to guess first.
- The surname and place name behind it are documented in England for centuries, giving the name a long paper trail.
To consider
- Hayley, Haley, Hailee and Haleigh all remain in use, so this name will be spelled back at you wrongly now and then for life. Saying the letters becomes routine rather than remarkable.
- It rose sharply and has been easing back, which means it reads as a name of the millennial-and-after generations rather than a neutral classic — most people named Hailey today are young adults.
- The -lee ending is shared with a whole cluster of popular names, so it may blend acoustically with classmates called Riley, Bailey or Kaylee even when no other Hailey is present.
Documented properties of each name — how it spells, travels and shortens — not opinions about the child.
How each is likely to age
Hadley
40%chance Hadley feels dated by 2040
Hadley sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.
Hailey
81%chance Hailey feels dated by 2040
Hailey is coming down from a big peak (#19 in 2010). This is the stretch of the cycle where a name starts to sound like the decade it ruled.
A reading of where each name sits on the long naming cycle — computed, not measured, and explained on the data page.
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 Hadley and Hailey 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 Hadley and Hailey?
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 that carry both names
- The sweet spot: familiar but not everywhere
- Six-letter names in current use
- Names ending in -ley / -lee / -leigh
- Names ending in -y
- all guides
Every list here names both Hadley and Hailey — the same style, ranked by the same records.
Hadley or Hailey — the short answers
- Which is more popular, Hadley or Hailey?
- Hailey, in 2025: Hailey ranked #104 with 2,556 babies; Hadley ranked #121 with 2,254 babies.
- Which name is rising faster, Hadley or Hailey?
- Neither is rising. Over the last five years Hadley moved down 10 places; Hailey moved down 23 places.
- Which is the older name, Hadley or Hailey?
- Hadley entered the US charts in 1964; Hailey entered the US charts in 1963. On the American record, Hailey is the older name.
- How many people are named Hadley and Hailey?
- About 46,500 people named Hadley are estimated to be alive in the US today. About 180,000 people named Hailey are estimated to be alive in the US today.
- Do Hadley and Hailey share a nickname?
- Yes — both shorten to Lee, so in a house with both names the short form would not say which child is meant.
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
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