Dia
Feminine · “day”
Dia is given to both — 2,250 girls and 117 boys since 1880. See other names given to both
Dia is the Spanish word for a day, the Irish word for God, and a Greek name for a goddess — three languages at three letters.
How old is the name Dia?
Dia first appears in US birth records in 1948 — 77 years ago. The typical Dia alive today was born around 1994, making them about 31 years old. About 2,200 people named Dia are estimated to be alive in the US today.
When was the name Dia most popular?
Dia peaked in 1968, reaching #1812 nationally. Today it ranks #4172, 2,360 places below that high. See the whole 1968 chart.
Lists built from the same records:
Where it comes from
Origin, sound and short forms
Our story of Dia
Ours, offered as ours. The Irish and Latin words here are the same word: Dia, deus, Zeus and the Sanskrit Dyaus all come from one Indo-European root meaning the bright sky, which is also where the Latin dies, a day, comes from. So the Spanish day and the Irish God are cousins after all — both from the word for daylight. That is one of the more satisfying connections in comparative linguistics and it lives inside three letters.
Meaningscholars disagree
day; or God; or divine
Spanish día is a day, from Latin dies. Irish Dia is God, from the same Indo-European root as Latin deus and Greek Zeus. Greek Dia was a name of Hebe and a feminine of Zeus. All three are real and unrelated as names.
Pronouncing Dia
DEE-ah
Two syllables, first stressed. Spanish with the accent stresses the first too.
Nicknames for Dia
Moderate
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1948
- Most girls named
- 201356 — the highest on record
- Peak rank
- #1812reached in 1968
- Change vs 2023
- −37.0%34 in 2025, from 54
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Dia in other languages
The same name elsewhere
- Día in Spanish — related form
- Dia in Irish — related form
- Δία in Greek — related form
Strongest US states over the last decade: California, Texas, New Jersey.
Dias among us
people named Dia are estimated to be alive in the US today
About 1 girl in 47,273 born in 2025 was named Dia
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Dia
- #4172
- Dia on the 2025 chart
- #807
- counting every spelling
The SSA counts spellings, not names. Dia went to 34 girls in 2025, but Diya is the same name said out loud. Together the 2 spellings went to 153, which makes it the 807th most-given girls’ name of the year — 3,365 places above the chart.
- Diya119
- Dia34
About 1 girl in 10,505 born in 2025 was given one of these spellings — against 1 in 47,273 for Dia itself.
Spellings are grouped by a fixed rule that folds interchangeable English spellings of one sound (ck/k, ph/f, x/ks, a non-initial y for i) and keeps vowels apart, so Sean and Shawn stay separate names. It errs towards splitting: a family here is never larger than the truth. SSA national data, 2025. Method
Is it right for you
What happens to a name after it peaks
The Tomie test
Every popular name lives one long story — a climb, a peak, a slow settling back. Dia's later chapters haven't been written yet, so we borrowed them: Tomie climbed just as high around 1924, and its whole arc is on record. Line the two peaks up, and Tomie's path sketches the road Dia is walking now.
Dia 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.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Dia is headed
Dia should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind.
Medium confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Dia beside its neighbors
The names ranked closest to Dia in 2025, in babies rather than position — the bars are to scale.
US girls given each name in 2025.
The trade-off
- Three letters and two syllables — about as short as a name gets.
- Three real languages produce it, and two of them are related.
- Open vowels make it easy to say in most languages.
- In Spanish it is the ordinary word for a day, which will be noticed.
- In Irish it is the word for God, which Irish speakers will find striking.
- Dia, Diya and Deja are all close and get confused.
Nobody names a baby alone.
Put Dia to the vote.
Add it to a family vote or a couple’s swipe deck — the other person gets one card, a simple answer and room to say why. No app, no account for them.
Only the people you invite can see your list.
Already decided on Dia? Hide it among decoys and let them guess.
What they receive
Someone added a name to your list
Dia
Feminine · #4172 in the U.S.
Frequently asked
- How many Dias are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 2,200 people named Dia are estimated to be alive in the US today.
- How do you spell Dia?
- Dia is one of 2 recorded spellings. Diya is the more common one — 119 births in 2025 against 34 for Dia.
- How popular is the name Dia in 2025?
- Dia ranks #4172 among US girl names in 2025, with 34 babies given the name.
- How rare is the name Dia?
- About 1 in every 47,273 US girls born in 2025 was named Dia — 34 in all.
- Will my child share the name Dia with classmates?
- Dia will almost certainly be the only one in school.
Ranked beside Dia
Names sitting at a similar level of popularity right now.
Roseanna#4172 · Elida#4172 · Neila#4172 · Savina#4172 · Kendyl#4172 · Zakiya#4172 · Naisha#4172 · Ethel#4172
Looking for what else is popular rather than what resembles Dia? See the current top 100.
Choosing between Dia and another name?
See them side by side — full stats, history and a gentle verdict.
Compare side by sideIn a hurry? Just pick a winner — one tap, no sign-up, and you see how everyone else voted.
Weighing a whole shortlist? Add the rest in the builder, or settle it with a bracket.
Cast your vote
Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
US figures from the Social Security Administration. 1880–2025. Data & methodology
No advertising trackers and no data sellinghow we handle your dataindependent and founder-run, about Name Battle