Cosmo
Cosmo was given to 80 boys in 2025, #1,934 among boys’ names; 2,955 Americans have been recorded with it since 1910 (Social Security Administration, published May 2026).
An estimated 1,760 Americans named Cosmo and born in the U.S. are alive in 2026 (60% of everyone recorded); the median is 20 years old and half are between 5 and 47.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Cosmo by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Cosmo mean?
Wiktionary, English section
Cosmo is “a male given name from Ancient Greek.”
Borrowed by Scotland from Italy in the 18th century. An Italian variant of Cosimo, from the name Cosmas of a saint (martyred with his brother Damian in the fourth century), from Ancient Greek κόσμος (kósmos, “order, ordered universe”).
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Cosmo?
#1,934 among boys’ names, 2025
Cosmo rose from #3,443 in 2015 to #1,934 in 2025 among boys’ names; its share of boys born rose from 16.7 to 46.8 per million.
105 babies in 2022, the peak
Cosmo peaked in 2022, when 105 babies were given it (99 boys, #1,708 among boys’ names). The 80 births of 2025 are 76% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 80 | #1,934 | 46.8 |
| 2024 | 99 | #1,688 | 57.5 |
| 2023 | 94 | #1,749 | 55.0 |
| 2022 | 99 | #1,708 | 56.7 |
| 2021 | 78 | #1,932 | 44.6 |
| 2020 | 60 | #2,270 | 34.8 |
| 2019 | 49 | #2,630 | 27.3 |
| 2018 | 41 | #2,902 | 22.6 |
| 2017 | 42 | #2,847 | 22.7 |
| 2016 | 21 | #4,651 | 11.1 |
Every recorded year (116)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 32 | #3,443 | 16.7 |
| 2014 | 14 | #6,050 | 7.3 |
| 2013 | 20 | #4,648 | 10.6 |
| 2012 | 16 | #5,516 | 8.4 |
| 2011 | 22 | #4,391 | 11.6 |
| 2010 | 25 | #4,012 | 13.0 |
| 2009 | 18 | #5,136 | 9.1 |
| 2008 | 22 | #4,421 | 10.8 |
| 2007 | 19 | #4,841 | 9.2 |
| 2006 | 33 | #3,232 | 16.1 |
| 2005 | 41 | #2,666 | 20.5 |
| 2004 | 26 | #3,544 | 13.1 |
| 2003 | 22 | #3,858 | 11.1 |
| 2002 | 29 | #3,118 | 14.9 |
| 2001 | 22 | #3,731 | 11.3 |
| 2000 | 22 | #3,652 | 11.2 |
| 1999 | 18 | #4,005 | 9.4 |
| 1998 | 19 | #3,725 | 9.9 |
| 1997 | 20 | #3,473 | 10.6 |
| 1996 | 20 | #3,419 | 10.6 |
| 1995 | 16 | #3,887 | 8.4 |
| 1994 | 27 | #2,696 | 14.0 |
| 1993 | 15 | #4,049 | 7.6 |
| 1992 | 14 | #4,134 | 7.0 |
| 1991 | 11 | #4,814 | 5.4 |
| 1990 | 12 | #4,447 | 5.8 |
| 1989 | 13 | #4,060 | 6.5 |
| 1988 | 8 | #5,280 | 4.2 |
| 1987 | 6 | #6,249 | 3.2 |
| 1986 | 12 | #3,683 | 6.5 |
| 1985 | 11 | #3,839 | 6.0 |
| 1984 | 11 | #3,744 | 6.1 |
| 1983 | 12 | #3,445 | 6.7 |
| 1982 | 17 | #2,728 | 9.4 |
| 1981 | 12 | #3,453 | 6.7 |
| 1980 | 6 | #5,659 | 3.4 |
| 1979 | 16 | #2,797 | 9.3 |
| 1978 | 8 | #4,227 | 4.9 |
| 1977 | 6 | #5,245 | 3.7 |
| 1976 | 8 | #4,074 | 5.1 |
| 1975 | 10 | #3,485 | 6.4 |
| 1974 | 15 | #2,574 | 9.5 |
| 1973 | 14 | #2,624 | 9.0 |
| 1972 | 17 | #2,262 | 10.5 |
| 1971 | 14 | #2,585 | 7.9 |
| 1970 | 20 | #2,008 | 10.8 |
| 1969 | 11 | #2,722 | 6.2 |
| 1968 | 6 | #3,766 | 3.5 |
| 1967 | 11 | #2,500 | 6.3 |
| 1966 | 13 | #2,239 | 7.3 |
| 1965 | 8 | #3,029 | 4.3 |
| 1964 | 13 | #2,327 | 6.5 |
| 1963 | 16 | #2,056 | 7.9 |
| 1962 | 13 | #2,296 | 6.3 |
| 1961 | 13 | #2,339 | 6.1 |
| 1960 | 17 | #1,980 | 8.0 |
| 1959 | 14 | #2,216 | 6.6 |
| 1958 | 16 | #2,038 | 7.5 |
| 1957 | 19 | #1,843 | 8.8 |
| 1956 | 28 | #1,487 | 13.2 |
| 1955 | 15 | #2,066 | 7.3 |
| 1954 | 17 | #1,904 | 8.3 |
| 1953 | 24 | #1,556 | 12.2 |
| 1952 | 20 | #1,713 | 10.3 |
| 1951 | 22 | #1,604 | 11.7 |
| 1950 | 16 | #1,895 | 8.9 |
| 1949 | 18 | #1,769 | 10.1 |
| 1948 | 20 | #1,662 | 11.4 |
| 1947 | 22 | #1,610 | 12.0 |
| 1946 | 14 | #1,967 | 8.6 |
| 1945 | 8 | #2,604 | 5.9 |
| 1944 | 13 | #2,009 | 9.5 |
| 1943 | 25 | #1,407 | 17.5 |
| 1942 | 31 | #1,250 | 22.4 |
| 1941 | 29 | #1,237 | 23.6 |
| 1940 | 11 | #2,210 | 9.5 |
| 1939 | 26 | #1,301 | 23.5 |
| 1938 | 25 | #1,343 | 22.5 |
| 1937 | 26 | #1,313 | 24.4 |
| 1936 | 25 | #1,331 | 24.1 |
| 1935 | 26 | #1,333 | 25.0 |
| 1934 | 21 | #1,517 | 20.3 |
| 1933 | 32 | #1,165 | 32.3 |
| 1932 | 35 | #1,143 | 33.5 |
| 1931 | 31 | #1,240 | 29.8 |
| 1930 | 39 | #1,119 | 35.5 |
| 1929 | 35 | #1,180 | 32.5 |
| 1928 | 43 | #1,059 | 38.8 |
| 1927 | 45 | #1,044 | 39.9 |
| 1926 | 50 | #966 | 45.0 |
| 1925 | 50 | #959 | 44.8 |
| 1924 | 48 | #1,020 | 42.4 |
| 1923 | 47 | #1,030 | 42.9 |
| 1922 | 40 | #1,122 | 36.8 |
| 1921 | 54 | #954 | 49.0 |
| 1920 | 40 | #1,123 | 37.6 |
| 1919 | 42 | #1,050 | 42.9 |
| 1918 | 43 | #1,032 | 42.4 |
| 1917 | 35 | #1,136 | 37.8 |
| 1916 | 28 | #1,270 | 31.5 |
| 1915 | 31 | #1,164 | 36.5 |
| 1914 | 23 | #1,232 | 35.1 |
| 1913 | 28 | #933 | 54.6 |
| 1912 | 11 | #1,546 | 25.6 |
| 1911 | 7 | #1,416 | 31.0 |
| 1910 | 6 | #1,460 | 30.9 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Cosmo a boy’s or a girl’s name?
Cosmo has been given almost only to boys: 6 girls in 116 years of records.
Girls and boys named Cosmo: the SSA national file counts each sex separately.
How many people are named Cosmo, and how old are they?
1,760 alive in 2026, estimated
That is 60% of the 2,955 Americans ever recorded as Cosmo. The median Cosmo alive today is 20 years old; half are between 5 and 47.
The 2020 Census counted 1,704 people named Cosmo (42 women and girls, 1,662 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,390 born in the U.S. The Census count is 23% above 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 |
|---|---|---|
| Silent Generation | 1928-1945 | 77 |
| Baby Boomers | 1946-1964 | 220 |
| Generation X | 1965-1980 | 161 |
| Millennials | 1981-1996 | 207 |
| Generation Z | 1997-2012 | 368 |
| Generation Alpha | 2013-2025 | 730 |
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 Cosmo born?
The states with the most babies named Cosmo are California, New York and Pennsylvania, with 85% of its births recorded by state in 2025.
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| California | 14 | #1,311 | 0.8× |
| New York | 9 | #1,226 | 3.0× |
| Pennsylvania | 6 | #1,126 | 0.4× |
| Texas | 5 | #2,652 | 0.1× |
Where Cosmo is more common than its national share predicts
Relative to its national share, Cosmo is most over-represented in New York: since 1910 it was given 3.0 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 Cosmo with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 3 names spelled alike, given to 5,344 babies since 1880, Cosmo is the most given (55% of them). In 2025 it was given to 80 of their 108 babies (74%), again the most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Cosmo
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 Cosmo and names like it
- Compare Cosmo and CosmeBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sCosmo peaked in 2022.
- New York’s most given namesThe state where SSA recorded the most babies named Cosmo since 1910.
- Ancient Greek namesWiktionary’s origin for Cosmo: every such name, by how often it is given.
- The top names of 2022The year the most babies were named Cosmo.
- The names of Generation AlphaMost people named Cosmo alive today were born 2013-2025.
- Names starting with CMost given first.