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Tomasz

#13,703 in 2025Boys' name

Form of Thomas

Tomasz has been given to 776 babies in the U.S. since 1969. In 2025 it ranked #13,703 of 13,926 boys’ names in use. Its peak year was 1995, with 29 recorded.

Babies named Tomasz, 2025

1 in 663,000

Tomasz over time, 1880–2025

Boys
010203018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Tomasz: meaning, origin, and history

Form of Thomas

Ancient Greek, Aramaic and Latin

What Tomasz means

Tomasz is a form of Thomas.

Documented naming usage and pronunciation

Tomasz is used in Polish.

Another recorded pronunciation is /ˈtɔ.maʂ/ for Tomasz.

Meaning behind the documented name family

The name developed through Tomasz → Thomas. The family’s meaning is “twin”, recorded in English with the source elements תאמא.

Origin, language, and formation

Tomasz is used in Polish. Its origins include Ancient Greek, Aramaic and Latin.

Tomasz comes through Latin Thōmās.

Related names and everyday forms

Related names include Thomas.

Pronunciation and spelling

In Polish, Tomasz is pronounced /ˈtɔ.maʂ/.

American usage and historical context

In the United States, 776 boys were recorded with the name Tomasz between 1969 and 2025. Its highest annual count was 29 in 1995; its best national rank was #2,602 in 1989.

Over 5 years its rank fell, from #7,448 in 2020 to #13,703 in 2025. Over 10 years its rank rose, from #13,849 in 2015 to #13,703 in 2025.

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 Tomasz?

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

Among all babies, 2025
1 in 663,000
5 of 3,315,165 births
Among boys only
1 in 342,000
<0.01% of boys
Rank, 2025
#13,703
of 13,926 boys’ names in use
Coin-flip room size
459,581 kids
Even odds of a second one

Where Tomasz sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

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 459,581 children born in 2025 and it's an even bet that one of them is another Tomasz. In a class of 30 the chance is Under 1%.

When Tomaszs were born

Half of everyone ever recorded as Tomasz was born before 1997 — so the typical Tomasz is around 28 today.

Median birth year
1997
About 28 years old
Biggest decade
1990s
30.8% of all use
Born in the last 25 years
42.0%
Spread across generations
Recorded since 1950
776
People you could plausibly meet
Choose a decade

1990s — 30.8% of all recorded uses (239).

Is Tomasz 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
−2,887
Places dropped
Rank vs 5 years ago
−6,255
Places dropped
Rank vs 10 years ago
+146
Places climbed
Births vs 10 years ago
1.00×
More babies than then
Share of its own peak
17.2%
Peak was 1995 (29)
Years since peak
30
Years
Year-to-year steadiness
Shifting
24.5% average annual change
Best rank ever
#2,602
1989

Spellings of Tomasz

Tomasz is not the most common spelling — Thomas is, with 98.6% against Tomasz's 0.03%.

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 Tomasz is used

Across 1910–2025, Tomasz was most concentrated in Illinois — about 1 in 33,333 boys, against 1 in 76,961 across all states with data. It was least common in New York (1 in —).

03 per 100,000

Most concentrated

  1. 1Illinois1 in 33,333
  2. 2Connecticut1 in —
  3. 3New York1 in —

Shading is the share of that state's recorded boys 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. Tomasz has too little recent state data to map, so this covers all years from 1910.

Tomasz around the world

Where Tomasz 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
    1996–2025
    #2,664
    in 2025
  • Scotland
    2007–2020
    #536
    in 2020
  • Northern Ireland
    2010–2012
    #403
    in 2012
  • Ireland
    2007–2021
    #414
    in 2021
  • France
    1987–2021
    #5,559
    in 2021
  • Norway
    1880–2018
    #471
    in 2018
  • Canada
    1991–2022
    #2,602
    in 2022
  • South Australia
    1958–2006
    #419
    in 2006

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Institut national de la statistique et des études économiques, Statistics Norway, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, SSB, CBS SA data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Tomasz by the numbers

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

As a boy's name

Rank in 2025
#13,703
Trend vs 5 yrs ago
Down 6,255
Best rank ever
#2,602
1989
Peak year
1995
29 that year
First recorded
1969
Last recorded
2025
All-time count
776
Count in 2025
5

Names similar to Tomasz

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

TommasoTomerLukaszTomaTomieTomasiTomokiTommeyTomyTomiTomoyaTommieTommasTomothyTommyeTomioTomislavTomasTomazTomarTomiasTomeTommiTommylee

Sibling names for Tomasz

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 Tomasz

Top names of 1995, Tomasz's peak yearThe 1990s in fullOther names that peaked in 1989Boys' names starting with TPolish Boy NamesPolish Names