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Tommi

#4,159 in 2025Girls' name

Twin, through Tuomas

Tommi has been given to 1,837 babies in the U.S. since 1945. In 2025 it ranked #4,159 of 17,293 girls’ names in use. Its peak year was 1976, with 47 recorded.

Babies named Tommi, 2025

1 in 94,700

Tommi over time, 1880–2025

GirlsBoys
020406018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Tommi: meaning, origin, and history

Twin, through Tuomas

Biblical Hebrew

What Tommi means

Tommi belongs to the name family reached through Tommi → Tuomas. Its meaning is “twin”.

Origin, language, and formation

Tommi is used in Finnish. Its origins include Biblical Hebrew.

Related names and everyday forms

Related names include Tuomas and Tommy.

Pronunciation and spelling

In Finnish, Tommi is pronounced /ˈtomːi/.

American usage and historical context

In the United States, 1,815 girls were recorded with the name Tommi between 1945 and 2025. Its highest annual count was 47 in 1976; its best national rank was #1,934 in 1976.

Over 5 years its rank rose, from #4,866 in 2020 to #4,159 in 2025. Over 10 years its rank rose, from #6,701 in 2015 to #4,159 in 2025.

In the United States, 22 boys were recorded with the name Tommi between 1985 and 2024. Its highest annual count was 6 in 1989; its best national rank was #7,498 in 1985.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Tommi?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 94,700
35 of 3,315,165 births
Among girls only
1 in 45,900
<0.01% of girls
Rank, 2025
#4,159
of 17,293 girls’ names in use
Coin-flip room size
65,655 kids
Even odds of a second one

Where Tommi sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 65,655 children born in 2025 and it's an even bet that one of them is another Tommi. In a class of 30 the chance is Under 1%.

When Tommis were born

Half of everyone ever recorded as Tommi was born before 1989 — so the typical Tommi is around 36 today.

Median birth year
1989
About 36 years old
Biggest decade
1970s
17.4% of all use
Born in the last 25 years
31.3%
Spread across generations
Recorded since 1950
1,791
People you could plausibly meet
Choose a decade

1970s — 17.4% of all recorded uses (315).

Is Tommi rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
+126
Places climbed
Rank vs 5 years ago
+707
Places climbed
Rank vs 10 years ago
+2,542
Places climbed
Births vs 10 years ago
1.84×
More babies than then
Share of its own peak
74.5%
Peak was 1976 (47)
Years since peak
49
Years
Year-to-year steadiness
Volatile
33.3% average annual change
Best rank ever
#1,934
1976

Spellings of Tommi

Tommi is not the most common spelling — Tammy is, with 52.8% against Tommi's 0.29%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Tommi is used

Across 1910–2025, Tommi was most concentrated in California — about 1 in — girls, against 1 in 546,700 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2Kentucky1 in —
  3. 3North Carolina1 in —
  4. 4New York1 in —
  5. 5Ohio1 in —
  6. 6Texas1 in —

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Tommi has too little recent state data to map, so this covers all years from 1910.

Tommi around the world

Where Tommi ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    2003–2003
    #4,373
    in 2003
  • South Australia
    1969–2005
    #775
    in 2005

Popularity data from Office for National Statistics and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. CBS SA data under CC BY 4.0.

Tommi by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#4,159
Trend vs 5 yrs ago
Up 707
Best rank ever
#1,934
1976
Peak year
1976
47 that year
First recorded
1945
Last recorded
2025
All-time count
1,815
Count in 2025
35

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#7,498
1985
Peak year
1989
6 that year
First recorded
1985
Last recorded
2024
All-time count
22
Count in 2025
Under 5

Names similar to Tommi

Matched on shared beginnings and endings, similar length, and comparable popularity.

TommyTomiTomasaSammiTommyeEmmiTomikaRemmiTomieTomikoTomekaTommieTomicaTomiaCammiTomaraKammiTomekiaTomTommaTomaTomasitaJimmiTomeko

Sibling names for Tommi

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Tommi

Top names of 1976, Tommi's peak yearThe 1970s in fullOther names that peaked in 1976Girls' names starting with TUncommon Finnish Boy Names