Casimiro
- Gender
- Boy
- Say it
- ka-see-MEE-roh
- Origin
- Slavic
- US rank, 2025
- #10,690 for boys
Casimiro is a boys' name of Slavic origin, meaning “destroyer of peace”. In 2025 it ranked 10,690th for boys in the US (6 babies).
What does Casimiro mean?
Slavic: Spanish, Italian and Portuguese form of Casimir
“destroyer of peace”
Saint Casimir, a 15th-century Polish prince, is the patron saint of Poland and Lithuania.
Is Casimiro a girl's or a boy's name?
Casimiro is a boys' name. In 2025, it was given to 6 boys in the US. Too few girls were given it to be listed.
How popular is Casimiro in the US?
- Rank in 2025
- 10,690th among boys
- Babies in 2025
- 6 about 1 in 280,000 boys
- Five-year trend
- Too rare to call too few babies to tell
- Same name in a class
- under 1% chance among 15 boys
In 2025, 6 boys in the US were named Casimiro, making it the 10,690th most popular name for boys. Its busiest year was 1921, with 28 boys. It first appears in the records in 1881.
Half of all the boys named Casimiro in the US since 1880 were born between 1931 and 1983, the years shaded on the chart below.
Casimiro in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 6 | #10,690 |
| 2024 | 0 | – |
| 2023 | 5 | #12,232 |
| 2022 | 7 | #9,815 |
| 2021 | 9 | #8,161 |
| 2020 | 0 | – |
| 2019 | 8 | #8,883 |
| 2018 | 5 | #12,150 |
| 2017 | 6 | #10,770 |
| 2016 | 8 | #8,811 |
| 2015 | 0 | – |
| 2014 | 0 | – |
| 2013 | 0 | – |
| 2012 | 0 | – |
| 2011 | 0 | – |
| 2010 | 0 | – |
| 2009 | 9 | #8,305 |
| 2008 | 5 | #12,546 |
| 2007 | 0 | – |
| 2006 | 6 | #10,655 |
| 2005 | 8 | #8,292 |
| 2004 | 10 | #6,970 |
| 2003 | 8 | #7,824 |
| 2002 | 6 | #9,385 |
| 2001 | 10 | #6,438 |
| 2000 | 12 | #5,581 |
| 1999 | 5 | #9,905 |
| 1998 | 7 | #7,553 |
| 1997 | 0 | – |
| 1996 | 10 | #5,528 |
| 1995 | 9 | #5,922 |
| 1994 | 6 | #7,764 |
| 1993 | 9 | #5,764 |
| 1992 | 10 | #5,228 |
| 1991 | 10 | #5,088 |
| 1990 | 7 | #6,408 |
| 1989 | 13 | #4,011 |
| 1988 | 7 | #5,745 |
| 1987 | 12 | #3,726 |
| 1986 | 11 | #3,878 |
| 1985 | 16 | #2,939 |
| 1984 | 10 | #3,922 |
| 1983 | 9 | #4,139 |
| 1982 | 10 | #3,964 |
| 1981 | 9 | #4,151 |
| 1980 | 6 | #5,523 |
| 1979 | 9 | #4,066 |
| 1978 | 9 | #3,855 |
| 1977 | 6 | #5,121 |
| 1976 | 13 | #2,945 |
| 1975 | 13 | #2,900 |
| 1974 | 11 | #3,118 |
| 1973 | 15 | #2,511 |
| 1972 | 6 | #4,438 |
| 1971 | 13 | #2,685 |
| 1970 | 9 | #3,280 |
| 1969 | 6 | #3,934 |
| 1968 | 10 | #2,734 |
| 1967 | 14 | #2,138 |
| 1966 | 15 | #2,042 |
| 1965 | 8 | #2,980 |
| 1964 | 11 | #2,545 |
| 1963 | 10 | #2,672 |
| 1962 | 8 | #3,039 |
| 1961 | 10 | #2,704 |
| 1960 | 6 | #3,663 |
| 1959 | 11 | #2,529 |
| 1958 | 7 | #3,273 |
| 1957 | 13 | #2,273 |
| 1956 | 14 | #2,167 |
| 1955 | 8 | #2,962 |
| 1954 | 13 | #2,206 |
| 1953 | 19 | #1,764 |
| 1952 | 10 | #2,512 |
| 1951 | 12 | #2,245 |
| 1950 | 8 | #2,769 |
| 1949 | 7 | #3,018 |
| 1948 | 13 | #2,114 |
| 1947 | 18 | #1,785 |
| 1946 | 10 | #2,402 |
| 1945 | 6 | #2,995 |
| 1944 | 7 | #2,861 |
| 1943 | 7 | #2,962 |
| 1942 | 8 | #2,711 |
| 1941 | 12 | #2,083 |
| 1940 | 8 | #2,671 |
| 1939 | 11 | #2,159 |
| 1938 | 5 | #3,533 |
| 1937 | 20 | #1,528 |
| 1936 | 9 | #2,451 |
| 1935 | 11 | #2,246 |
| 1934 | 12 | #2,121 |
| 1933 | 11 | #2,213 |
| 1932 | 0 | – |
| 1931 | 18 | #1,693 |
| 1930 | 16 | #1,889 |
| 1929 | 21 | #1,611 |
| 1928 | 18 | #1,822 |
| 1927 | 13 | #2,298 |
| 1926 | 22 | #1,605 |
| 1925 | 12 | #2,434 |
| 1924 | 16 | #2,043 |
| 1923 | 13 | #2,330 |
| 1922 | 14 | #2,239 |
| 1921 | 28 | #1,412 |
| 1920 | 13 | #2,335 |
| 1919 | 14 | #2,151 |
| 1918 | 12 | #2,397 |
| 1917 | 9 | #2,731 |
| 1916 | 10 | #2,542 |
| 1915 | 13 | #2,069 |
| 1914 | 10 | #2,100 |
| 1913 | 0 | – |
| 1912 | 10 | #1,618 |
| 1911 | 0 | – |
| 1910 | 0 | – |
| 1909 | 0 | – |
| 1908 | 0 | – |
| 1907 | 0 | – |
| 1906 | 0 | – |
| 1905 | 0 | – |
| 1904 | 0 | – |
| 1903 | 0 | – |
| 1902 | 0 | – |
| 1901 | 0 | – |
| 1900 | 0 | – |
| 1899 | 0 | – |
| 1898 | 0 | – |
| 1897 | 0 | – |
| 1896 | 0 | – |
| 1895 | 0 | – |
| 1894 | 0 | – |
| 1893 | 0 | – |
| 1892 | 0 | – |
| 1891 | 0 | – |
| 1890 | 0 | – |
| 1889 | 0 | – |
| 1888 | 0 | – |
| 1887 | 0 | – |
| 1886 | 0 | – |
| 1885 | 0 | – |
| 1884 | 0 | – |
| 1883 | 0 | – |
| 1882 | 0 | – |
| 1881 | 6 | #780 |
Names like Casimiro
Names given in the same years and the same naming tradition, with a similar sound.
Charles, James, John, William, Thomas, Robert, Joseph, George, Arthur, Richard, Frederick, Peter
Names related to Casimiro
More Slavic names
Mila, Milan, Vera, Mira, Nadia, Milana, Rayna, Zora, Milena, Raina, Damir, Lev, Siyana, Vlad, Lilyana, Yuri
Sources
Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Casimiro: name meaning, origin and popularity”, https://www.nameling.co.uk/names/casimiro, updated 20 October 2026.