Head to head · Boys' names
Lachlan vs Zaiden
#606 vs #607 in 2025
Lachlan is a whisker ahead (#606 vs #607 in 2025), but the curves point different ways: Lachlan is holding its place on the charts, Zaiden 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, Lachlan leads 4 measures of 6; Zaiden leads 2.
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
- 1950s: Lachlan #3765, Zaiden — — Lachlan higher
- 1960s: Lachlan #4039, Zaiden — — Lachlan higher
- 1970s: Lachlan #4724, Zaiden — — Lachlan higher
- 1980s: Lachlan #5242, Zaiden — — Lachlan higher
- 1990s: Lachlan #4432, Zaiden — — Lachlan higher
- 2000s: Lachlan #1686, Zaiden #3466 — Lachlan higher
- 2010s: Lachlan #872, Zaiden #431 — Zaiden higher
- 2020s: Lachlan #708, Zaiden #534 — Zaiden higher
Lachlan stood higher in 6 of 8 decades; Zaiden has held the lead since the 2010s.
Rank by decade
| Decade | Lachlan | Zaiden |
|---|---|---|
| 1950s | #3765 | — |
| 1960s | #4039 | — |
| 1970s | #4724 | — |
| 1980s | #5242 | — |
| 1990s | #4432 | — |
| 2000s | #1686 | #3466 |
| 2010s | #872 | #431 |
| 2020s | #708 | #534 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
Around the world
Lachlan
- Scotland#79
Zaiden
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
Lachlan
from Lochlann — the Gaelic name for Scandinavia, so 'Norseman'
Lochlann is often read literally as 'land of the lochs' or 'land of the fjords', which is how the Gaels described the Norse homelands. Both the literal and the applied sense point the same way.
Lochlann → Lachlann → Lachlan
How it traveled
The name begins as Scottish Gaelic Lachlann, a form of Lochlann, the word the Gaels used for Scandinavia and its people. It became a hereditary favorite among the MacLachlans of Argyll — the surname itself simply means 'son of Lachlann' — and stayed in Highland use for centuries.
Zaiden
Not settled — either a Z-form of the Aiden family or an English spelling of Arabic Zayd
Two readings compete. The first treats Zaiden as a modern American formation on the -aiden pattern, in which case any meaning belongs to Aidan, from the Irish Aodhán, a diminutive of Aodh, 'fire'. The second links it to the Arabic Zayd, 'growth, increase, abundance', a name attested for well over a thousand years, and to its expanded form Zaydan. Which road any given family took is usually the family's own answer rather than a linguist's.
How it traveled
Zaiden itself has no long paper trail; it appears in American records only from the turn of the millennium onward, which places it among the youngest names on this shelf. What surrounds it is much older.
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
Lachlan
LOCK-lun
The first syllable is the Scottish loch, though most American speakers say a plain 'lock'. You will also hear LAK-lun, and some readers guess LATCH-lan on first sight.
- Lachie — The standard informal short form in Scotland and Australia; sometimes written Lachy.
- Lochie — Spelling that makes the loch sound explicit; used informally, occasionally seen standing alone.
- Lockie — Phonetic spelling common in Australian informal use.
- Lach — Clipped one-syllable form, mostly among friends and family.
- Also Locke.
Zaiden
ZAY-den
Two syllables, stress on the first, rhyming exactly with Aiden and Jayden. Almost no one needs to be told how to say it — the pattern is that well established. The spelling is the part that needs repeating.
- Zay — The most common everyday short form; also given on its own to some children.
- Z — Single-letter nickname used among friends and siblings rather than by adults.
- Zade — Less common, used informally within families.
Is it right for you
The differences that decide it, laid out by what you want
Choose by what you want
Choose Lachlan if you want…
- a name on the way upup 99 places on the charts in five years
- plenty of nickname options5 recorded short forms — Lachie, Lochie and Lockie
- a name that charts abroad tooLachlan is on the national lists of Scotland
Choose Zaiden if you want…
- a name past its most crowded yearsZaiden 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
Lachlan
Strengths
- The meaning is settled and easy to tell: Lochlann, the Gaelic word for Scandinavia and the Norse.
- Comes with short forms already in real use — Lachie, Lochie, Lockie — so nothing has to be invented.
- A documented Highland line stretching back centuries, preserved in the surname MacLachlan and the Irish Loughlin.
To consider
- The loch sound has no natural home in American English, so expect a mix of LOCK-lun, LAK-lun and the occasional LATCH-lan, and expect to correct it politely for years.
- Because it is written the way it is, people who have heard it but not seen it may try Lockland, Locklan or Loughlan. The spelling is standard; the familiarity is not yet.
- This is a name a child will likely carry alone in their class. That means no surname initial, and also no shortcut — it gets explained more often than a Jack or a Liam would.
Zaiden
Strengths
- Sits on a sound pattern so familiar that strangers pronounce it correctly on first sight, with no coaching.
- Has real short forms already in use — Zay, Z — so there is an informal version available without inventing one.
- Two beats with the stress up front, which sits comfortably before most surnames and after most one-syllable middle names.
To consider
- Zaiden, Zayden and Zaidyn all exist, and none of them is the obvious default. Expect to spell it aloud fairly often, and to see the other versions come back on forms and name tags.
- In a noisy room it can be heard as Aiden or Jayden. The opening Z is the only thing separating them by ear, and it is a soft distinction.
- This name's whole recorded life is recent, so it reads as belonging to a particular stretch of taste — much as Kevin or Tracy do for earlier stretches. That is a fair trade for sounding current, but worth knowing.
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 Lachlan and Zaiden 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 Lachlan and Zaiden?
Put both to the vote.
One link to your partner, your parents, your sister. Each of them gets the two names, a one-tap answer and room to say why — and every reply lands in one place.
Free to start · no account needed · everyone you invite votes in one tap
More than two in the running? Settle it with a bracket or run the full comparison with your last name.
More head-to-heads
Same measures, different pair. Sixty more are dealt daily in the arena.
Lists that carry both names
Every list here names both Lachlan and Zaiden — the same style, ranked by the same records.
Lachlan or Zaiden — the short answers
- Which is more popular, Lachlan or Zaiden?
- Lachlan, in 2025: Lachlan ranked #606 with 468 babies; Zaiden ranked #607 with 466 babies.
- Which name is rising faster, Lachlan or Zaiden?
- Lachlan. Over the last five years Lachlan moved up 99 places; Zaiden moved down 97 places.
- Which is the older name, Lachlan or Zaiden?
- Lachlan entered the US charts in 1952; Zaiden entered the US charts in 2000. On the American record, Lachlan is the older name.
- How many people are named Lachlan and Zaiden?
- About 6,100 people named Lachlan are estimated to be alive in the US today. About 11,500 people named Zaiden are estimated to be alive in the US today.
- Will there be other Lachlans or Zaidens in the classroom?
- Lachlan will almost certainly be the only one in school. Zaiden 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
Sixty more head-to-heads are dealt in the arena every day — or line up Lachlan, Zaiden and the rest of your shortlist with your last name in one printable report.
Free to start · no account needed · everyone you invite votes in one tap