Mateusz
Mateusz was given to 10 boys in 2025, #8,019 among boys’ names; 1,156 Americans have been recorded with it since 1987 (Social Security Administration, published May 2026).
An estimated 1,130 Americans named Mateusz and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 23 years old and half are between 18 and 29.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Mateusz by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Mateusz mean?
Wiktionary, Polish section
Mateusz is “a male given name, equivalent to English Matthew”
Learned borrowing from Latin Matthaeus. Doublet of Maciej.
/maˈtɛ.uʂ/
Meaning: Wiktionary, Polish section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Mateusz?
#8,019 among boys’ names, 2025
Mateusz fell from #5,645 in 2015 to #8,019 in 2025 among boys’ names; its share of boys born fell from 8.3 to 5.9 per million.
62 babies in 2008, the peak
Mateusz peaked in 2008, when 62 boys were given it, #2,174 among boys’ names. The 10 births of 2025 are 16% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 10 | #8,019 | 5.9 |
| 2024 | 5 | #13,521 | 2.9 |
| 2023 | 5 | #13,460 | 2.9 |
| 2022 | 6 | #11,786 | 3.4 |
| 2021 | 8 | #9,376 | 4.6 |
| 2020 | 7 | #10,209 | 4.1 |
| 2019 | 7 | #10,433 | 3.9 |
| 2018 | 7 | #10,358 | 3.9 |
| 2017 | 12 | #6,955 | 6.5 |
| 2016 | 17 | #5,459 | 9.0 |
Every recorded year (39)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 16 | #5,645 | 8.3 |
| 2014 | 13 | #6,504 | 6.8 |
| 2013 | 28 | #3,715 | 14.8 |
| 2012 | 21 | #4,625 | 11.1 |
| 2011 | 39 | #2,976 | 20.5 |
| 2010 | 44 | #2,769 | 22.9 |
| 2009 | 38 | #3,083 | 19.2 |
| 2008 | 62 | #2,174 | 30.4 |
| 2007 | 59 | #2,249 | 28.4 |
| 2006 | 55 | #2,304 | 26.8 |
| 2005 | 42 | #2,637 | 21.0 |
| 2004 | 59 | #2,039 | 29.7 |
| 2003 | 53 | #2,112 | 26.8 |
| 2002 | 52 | #2,077 | 26.8 |
| 2001 | 37 | #2,595 | 19.0 |
| 2000 | 48 | #2,111 | 24.4 |
| 1999 | 48 | #2,011 | 25.0 |
| 1998 | 46 | #2,054 | 24.1 |
| 1997 | 57 | #1,714 | 30.2 |
| 1996 | 51 | #1,804 | 26.9 |
| 1995 | 40 | #2,073 | 21.0 |
| 1994 | 40 | #2,065 | 20.7 |
| 1993 | 31 | #2,431 | 15.8 |
| 1992 | 19 | #3,410 | 9.5 |
| 1991 | 31 | #2,322 | 15.3 |
| 1990 | 16 | #3,712 | 7.8 |
| 1989 | 16 | #3,548 | 8.0 |
| 1988 | 5 | #8,077 | 2.6 |
| 1987 | 6 | #6,647 | 3.2 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Mateusz a boy’s or a girl’s name?
Mateusz has been recorded only for boys: SSA lists no girls with the name in 39 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Mateusz: the SSA national file counts each sex separately.
How many people are named Mateusz, and how old are they?
1,130 alive in 2026, estimated
That is 98% of the 1,156 Americans ever recorded as Mateusz. The median Mateusz alive today is 23 years old; half are between 18 and 29.
The 2020 Census counted 2,026 people named Mateusz (1 woman or girl, 2,025 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,101 born in the U.S. The Census count is 1.8 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Millennials | 1981-1996 | 245 |
| Generation Z | 1997-2012 | 747 |
| Generation Alpha | 2013-2025 | 140 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Mateusz born?
The states with the most babies named Mateusz are Illinois, New York and New Jersey, with 98% of its births recorded by state since 1910; New Jersey is not among the ten states with the most births.
| State | Since 1910 | Rank, boys | vs. national |
|---|---|---|---|
| Illinois | 483 | not ranked | 9.5× |
| New York | 218 | not ranked | 3.0× |
| New Jersey | 82 | not ranked | 2.5× |
| Connecticut | 11 | not ranked | 0.8× |
| California | 5 | not ranked | 0.0× |
Where Mateusz is more common than its national share predicts
Relative to its national share, Mateusz is most over-represented in Illinois: since 1987 it was given 9.5 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Mateusz with the births its national share predicts year by year, for states with at least 100 births of the name.
Names that rose and fell in the same decades as Mateusz
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Mateusz and names like it
- Compare Mateusz and JayquanBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sMateusz peaked in 2008.
- Illinois’s most given namesThe state where SSA recorded the most babies named Mateusz since 1910.
- Polish namesWiktionary’s origin for Mateusz: every such name, by how often it is given.
- The top names of 2008The year the most babies were named Mateusz.
- The names of Generation ZMost people named Mateusz alive today were born 1997-2012.
- Names starting with MMost given first.