Head to head · Girls' names
Teagan vs Thea
#340 vs #353 in 2025 · both stepping back from its peak
Teagan is a whisker ahead (#340 vs #353 in 2025) and both are stepping back from its peak. The records will not split these two — sound, story and your own last name will.
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, Teagan leads 4 measures of 6; Thea leads 1.
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: Teagan —, Thea #774 — Thea higher
- 1890s: Teagan —, Thea #946 — Thea higher
- 1900s: Teagan —, Thea #1332 — Thea higher
- 1910s: Teagan —, Thea #1760 — Thea higher
- 1920s: Teagan —, Thea #1722 — Thea higher
- 1930s: Teagan —, Thea #1766 — Thea higher
- 1940s: Teagan —, Thea #1276 — Thea higher
- 1950s: Teagan —, Thea #973 — Thea higher
- 1960s: Teagan —, Thea #1013 — Thea higher
- 1970s: Teagan #9010, Thea #1169 — Thea higher
- 1980s: Teagan #5060, Thea #1337 — Thea higher
- 1990s: Teagan #1654, Thea #1686 — Teagan higher
- 2000s: Teagan #527, Thea #1520 — Teagan higher
- 2010s: Teagan #215, Thea #782 — Teagan higher
- 2020s: Teagan #285, Thea #323 — Teagan higher
Thea stood higher in 11 of 15 decades; Teagan has held the lead since the 1990s.
Rank by decade
| Decade | Teagan | Thea |
|---|---|---|
| 1880s | — | #774 |
| 1890s | — | #946 |
| 1900s | — | #1332 |
| 1910s | — | #1760 |
| 1920s | — | #1722 |
| 1930s | — | #1766 |
| 1940s | — | #1276 |
| 1950s | — | #973 |
| 1960s | — | #1013 |
| 1970s | #9010 | #1169 |
| 1980s | #5060 | #1337 |
| 1990s | #1654 | #1686 |
| 2000s | #527 | #1520 |
| 2010s | #215 | #782 |
| 2020s | #285 | #323 |
Average national rank across each decade. A dash means the name sat outside the recorded top of that decade.
Around the world
Teagan
Not charting outside the US.
Thea
- England & Wales#66
- Scotland#69
National statistics offices, latest published year.
The names themselves
Meaning, roots, sound and the people who carried each
Where each name comes from
Teagan
Either "poet, storyteller" (Irish) or "fair, lovely" (Welsh)
The Irish road runs through Tadhg, an old given name meaning poet or bard, which produced the surname Ó Tadhgáin, anglicized as Teague, Tighe and Tegan. The Welsh road runs through teg, "fair, beautiful," with the diminutive -an, giving Tegan. Both are genuine; the spelling Teagan sits close enough to each that neither can claim it alone.
Tadhg → Ó Tadhgáin → Teague / Tegan → Teagan
How it traveled
Tadhg was a working name in medieval Ireland — borne by kings of Connacht and Munster — and so common that English speakers eventually used "Teague" as a rough shorthand for an Irishman. From the descendant surname Ó Tadhgáin came Teagan, Tegan and Tighe, carried to America by Irish families and later lifted off the surname shelf as a first name, as Ryan and Brennan were.
Thea
'Goddess' in Greek; also a short form of Dorothea, Althea, Anthea and Theodora
Both roads are well documented. The Greek noun θεά (thea) means goddess, and the same element theos, 'god', sits inside Dorothea ('gift of God') and Theodora ('God's gift'), from which Thea was clipped in Dutch, German and Scandinavian use. A child named Thea may be following either line, or both.
θεά (thea), Greek for 'goddess' → Dorothea → Thea
How it traveled
The Greek element is the older one: theos, 'god', and its feminine thea, which fed a whole family of classical names — Dorothea, Theodora, Anthea, Althea. In the Netherlands, Germany and Scandinavia, speakers trimmed Dorothea down to its final syllable, and Thea took on a life of its own as a full given name rather than a pet form.
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
Teagan
TEE-gun
TEE-gun is the standard American pronunciation. TAY-gun is heard too, closer to some Irish and Welsh habits, so a bearer may want to state which one early. The Irish ancestor Tadhg itself sounds nothing like either — roughly TYG, rhyming with "tiger" cut short.
- Tee — The everyday short form, used at home and among friends; rarely written down.
- Teags — Informal, mostly from siblings and schoolmates rather than adults.
- T — Initial-only nickname common in sports and classrooms; works for a bearer of either sex.
Thea
THEE-uh
THEE-uh is the usual English reading. In German, Dutch and Scandinavian mouths it is closer to TAY-ah, and some American families use that pronunciation too — worth deciding early, since both are legitimate and neither is guessable from the spelling.
- Thea — Already the short form of Dorothea, Althea, Anthea and Theodora — parents who want a longer name on the birth certificate can register one of those and use Thea daily.
- Tea — The standard spelling in Sweden, Italy and Croatia; in English-speaking countries it turns up mainly as an informal written variant.
- Tee — An informal spoken shortening, used within families rather than on paper.
One short form, two names
- Teagan and Thea both shorten to Tee.
Short forms as recorded on each name’s own page. This is here so it is a decision rather than a discovery.
Is it right for you
The differences that decide it, laid out by what you want
Choose by what you want
Choose Teagan if you want…
- a name most people already know#340 in 2025, 894 babies that year
- a name past its most crowded yearsTeagan is stepping back from its peak
- a newer arrivalTeagan entered the US charts in 1979
Choose Thea if you want…
- a name fewer children share#353 in 2025 — thea will almost certainly be the only one in school
- a name that charts abroad tooThea is on the national lists of England & Wales and Scotland
- a long American recordThea was already in use when US records began in 1880
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
Teagan
Strengths
- Short, two syllables, stress on the first — it survives being shouted, and most people spell it correctly after hearing it once.
- Carries a live Irish root: Tadhg is still an ordinary given name in Ireland, so the family line behind it is not a museum piece.
- Sits comfortably beside both single-syllable and long surnames, and the -an ending matches the current run of Rowan, Logan and Nolan.
To consider
- The spelling field is crowded: Teagan, Tegan, Teigan, Teegan and Taegan all exist, so expect to spell it aloud fairly often even though people will say it right.
- TEE-gun and TAY-gun both circulate. Neither is wrong, but the two versions do meet, and correcting the other one becomes a small lifelong habit.
- In the US this is chiefly a girl's name, while its Irish ancestor Tadhg belongs to men and a smaller number of American boys are given Teagan. Worth knowing if the ambiguity on paper matters to you.
Thea
Strengths
- Four letters, two syllables, and no silent letters — most people can spell it after hearing it once.
- Works as the everyday form of Dorothea, Althea, Anthea or Theodora, so a longer formal name is available without changing what anyone calls her.
- Established in Norway, Denmark, Germany, the Netherlands and across the English-speaking world, so it travels without translation.
To consider
- Two live pronunciations: THEE-uh in English, TAY-ah in German and Scandinavian use. Both are correct, which means she will spend some of her life correcting people either way.
- It is easily heard as Tia, Téa or Thia, and the silent-ish 'h' invites the spelling Tea. Expect to repeat it over the phone.
- The English 'th' sound does not exist in many languages, so relatives or friends abroad may land on TAY-ah or TEE-ah naturally.
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 Teagan and Thea 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 Teagan and Thea?
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 Teagan and Thea — the same style, ranked by the same records.
Teagan or Thea — the short answers
- Which is more popular, Teagan or Thea?
- Teagan, in 2025: Teagan ranked #340 with 894 babies; Thea ranked #353 with 867 babies.
- Which name is rising faster, Teagan or Thea?
- Neither is rising. Over the last five years Teagan moved down 149 places; Thea moved down 51 places.
- Which is the older name, Teagan or Thea?
- Teagan entered the US charts in 1979; Thea was already in use when US records began in 1880. On the American record, Thea is the older name.
- How many people are named Teagan and Thea?
- About 29,000 people named Teagan are estimated to be alive in the US today. About 18,500 people named Thea are estimated to be alive in the US today.
- Do Teagan and Thea share a nickname?
- Yes — both shorten to Tee, 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
Keep playing
Sixty more head-to-heads are dealt in the arena every day — or line up Teagan, Thea 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