Tommi
Feminine · “twin”
Tommi is overwhelmingly a girls’ name — 1,815 girls against 22 boys since 1880.
Tommi is a short form of Thomasina, and behind it is the Aramaic word for a twin — a name that started as a nickname and never had another.
How old is the name Tommi?
Tommi first appears in US birth records in 1945 — 80 years ago. The typical Tommi alive today was born around 1990, making them about 35 years old. About 1,700 people named Tommi are estimated to be alive in the US today.
When was the name Tommi most popular?
Tommi peaked in 1976, reaching #1912 nationally. Today it ranks #4067, 2,155 places below that high. See the whole 1976 chart.
Lists built from the same records:
Where it comes from
From te'oma to Tommi
The story of Tommi
Thomasina was a real medieval English women's name and stayed in use into the nineteenth century, giving Tamsin in Cornwall and the West Country. American naming of the 1950s and 1960s gave women men's nicknames freely — Tommi, Bobbi, Jodi, Terri — and registered them as full names. Tommi belongs to that wave and peaked in the 1970s.
Meaning
twin
From Aramaic te'oma, a twin, through Greek Thomas; Thomasina is the medieval Latinate feminine, used in England from the thirteenth century. The -i ending is a modern American respelling of the household form.
How the name formed
- te'oma
- Thomasina
- Tommi
Related forms: Tommie · Tamsin · Thomasina
Pronouncing Tommi
TOM-ee
Two syllables, first stressed. Tommi and Tommy are said identically.
Nicknames for Tommi
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
- 1945
- Most girls named
- 197747 — the highest on record
- Peak rank
- #1912reached in 1976
- Change vs 2023
- +59.1%35 in 2025, from 22
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.
Tommi in other languages
The same name elsewhere
- Tommie in English — spelling variant
- Tamsin in Cornish — related form
- Thomasina in English — related form
Strongest US states over the last decade: California, Ohio, Texas.
Tommis among us
people named Tommi are estimated to be alive in the US today
About 1 girl in 45,922 born in 2025 was named Tommi
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Tommi
- #4067
- Tommi on the 2025 chart
- #870
- counting every spelling
The SSA counts spellings, not names. Tommi went to 35 girls in 2025, but Tommy and Tomi are the same name said out loud. Together the 3 spellings went to 90, which makes it the 870th most-given girls’ name of the year — 3,197 places above the chart.
About 1 girl in 17,859 born in 2025 was given one of these spellings — against 1 in 45,922 for Tommi 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 Noralee test
Every popular name lives one long story — a climb, a peak, a slow settling back. Tommi's later chapters haven't been written yet, so we borrowed them: Noralee climbed just as high around 1934, and its whole arc is on record. Line the two peaks up, and Noralee's path sketches the road Tommi is walking now.
Tommi 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 Tommi is headed
Tommi should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind. Its history is short or jumpy, though, so read this as a sketch rather than a promise.
Low 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.
Tommi beside its neighbors
The names ranked closest to Tommi in 2025, in babies rather than position — the bars are to scale.
US girls given each name in 2025.
The trade-off
- A settled meaning inherited from a very well-documented name.
- Thomasina and Tamsin both stand behind it as fuller formal options.
- Warm and immediately friendly, and understood by everyone.
- It is far more common for men, so she will correct assumptions.
- It is strongly associated with one mid-century American generation.
- It reads as a nickname, which may matter on a formal document.
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What they receive
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Tommi
Feminine · #4067 in the U.S.
Frequently asked
- How many Tommis are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 1,700 people named Tommi are estimated to be alive in the US today.
- How do you spell Tommi?
- Tommi is the most-used spelling in US records — 35 of the 90 babies given the name in 2025. The others recorded are Tommy and Tomi.
- How popular is the name Tommi in 2025?
- Tommi ranks #4067 among US girl names in 2025, with 35 babies given the name.
- How rare is the name Tommi?
- About 1 in every 45,922 US girls born in 2025 was named Tommi — 35 in all.
- Will my child share the name Tommi with classmates?
- Tommi will almost certainly be the only one in school.
Ranked beside Tommi
Names sitting at a similar level of popularity right now.
Eli#4067 · Peace#4067 · Medina#4067 · Darlin#4067 · Anja#4067 · Sparrow#4067 · Liani#4067 · Salina#4067
Looking for what else is popular rather than what resembles Tommi? See the current top 100.
Choosing between Tommi and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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