Is Guillermo a boy or girl name?
Guillermo is a boy name in the US. In 2024, 0 girls and 297 boys were named Guillermo, so 0% were girls. Across 1880–2024, 0.2% of the 31,881 US babies named Guillermo were girls.
- Boy rank, 2024
- #832
- Girl rank, 2024
- Not ranked
- Babies named Guillermo since 1885
- 31,881
- Most popular year
- 1998
- 693 babies
Boys and girls named Guillermo, by decade
| Decade | Boys | Girls | Share girls |
|---|---|---|---|
| 1880s | 5 | 0 | 0% |
| 1890s | 13 | 0 | 0% |
| 1900s | 44 | 0 | 0% |
| 1910s | 253 | 0 | 0% |
| 1920s | 821 | 0 | 0% |
| 1930s | 783 | 0 | 0% |
| 1940s | 943 | 0 | 0% |
| 1950s | 1,495 | 0 | 0% |
| 1960s | 2,107 | 5 | 0.2% |
| 1970s | 3,357 | 5 | 0.1% |
| 1980s | 4,364 | 25 | 0.6% |
| 1990s | 6,462 | 34 | 0.5% |
| 2000s | 6,095 | 5 | 0.1% |
| 2010s | 3,615 | 0 | 0% |
| 2020s | 1,450 | 0 | 0% |
Every year
| Year | Boys | Boy rank | Girls | Girl rank |
|---|---|---|---|---|
| 2024 | 297 | #832 | 0 | – |
| 2023 | 292 | #834 | 0 | – |
| 2022 | 287 | #850 | 0 | – |
| 2021 | 299 | #812 | 0 | – |
| 2020 | 275 | #832 | 0 | – |
| 2019 | 320 | #747 | 0 | – |
| 2018 | 314 | #752 | 0 | – |
| 2017 | 289 | #795 | 0 | – |
| 2016 | 322 | #755 | 0 | – |
| 2015 | 389 | #661 | 0 | – |
| 2014 | 376 | #676 | 0 | – |
| 2013 | 348 | #690 | 0 | – |
| 2012 | 392 | #619 | 0 | – |
| 2011 | 408 | #603 | 0 | – |
| 2010 | 457 | #553 | 0 | – |
| 2009 | 534 | #506 | 0 | – |
| 2008 | 583 | #476 | 0 | – |
| 2007 | 610 | #454 | 0 | – |
| 2006 | 621 | #439 | 5 | #18,116 |
| 2005 | 616 | #434 | 0 | – |
| 2004 | 639 | #406 | 0 | – |
| 2003 | 595 | #428 | 0 | – |
| 2002 | 626 | #405 | 0 | – |
| 2001 | 620 | #402 | 0 | – |
| 2000 | 651 | #392 | 0 | – |
| 1999 | 665 | #387 | 0 | – |
| 1998 | 693 | #369 | 0 | – |
| 1997 | 632 | #382 | 0 | – |
| 1996 | 692 | #352 | 0 | – |
| 1995 | 623 | #380 | 6 | #12,302 |
| 1994 | 675 | #357 | 6 | #12,318 |
| 1993 | 654 | #360 | 7 | #10,983 |
| 1992 | 659 | #361 | 7 | #10,871 |
| 1991 | 582 | #389 | 8 | #9,639 |
| 1990 | 587 | #396 | 0 | – |
| 1989 | 532 | #404 | 0 | – |
| 1988 | 511 | #386 | 5 | #12,459 |
| 1987 | 389 | #451 | 0 | – |
| 1986 | 405 | #430 | 0 | – |
| 1985 | 432 | #409 | 5 | #11,243 |
| 1984 | 412 | #404 | 0 | – |
| 1983 | 423 | #394 | 0 | – |
| 1982 | 437 | #386 | 5 | #11,063 |
| 1981 | 428 | #392 | 5 | #10,951 |
| 1980 | 395 | #409 | 5 | #10,923 |
| 1979 | 394 | #400 | 0 | – |
| 1978 | 322 | #442 | 0 | – |
| 1977 | 351 | #422 | 0 | – |
| 1976 | 360 | #411 | 0 | – |
| 1975 | 349 | #416 | 5 | #9,558 |
| 1974 | 349 | #418 | 0 | – |
| 1973 | 347 | #419 | 0 | – |
| 1972 | 281 | #469 | 0 | – |
| 1971 | 314 | #461 | 0 | – |
| 1970 | 290 | #472 | 0 | – |
| 1969 | 244 | #494 | 0 | – |
| 1968 | 292 | #450 | 0 | – |
| 1967 | 242 | #484 | 0 | – |
| 1966 | 194 | #550 | 5 | #6,918 |
| 1965 | 203 | #539 | 0 | – |
| 1964 | 192 | #571 | 0 | – |
| 1963 | 193 | #567 | 0 | – |
| 1962 | 185 | #576 | 0 | – |
| 1961 | 171 | #607 | 0 | – |
| 1960 | 191 | #565 | 0 | – |
| 1959 | 183 | #582 | 0 | – |
| 1958 | 163 | #603 | 0 | – |
| 1957 | 158 | #612 | 0 | – |
| 1956 | 172 | #581 | 0 | – |
| 1955 | 150 | #604 | 0 | – |
| 1954 | 149 | #608 | 0 | – |
| 1953 | 126 | #638 | 0 | – |
| 1952 | 134 | #610 | 0 | – |
| 1951 | 133 | #611 | 0 | – |
| 1950 | 127 | #608 | 0 | – |
| 1949 | 137 | #577 | 0 | – |
| 1948 | 136 | #574 | 0 | – |
| 1947 | 114 | #646 | 0 | – |
| 1946 | 93 | #671 | 0 | – |
| 1945 | 94 | #626 | 0 | – |
| 1944 | 77 | #708 | 0 | – |
| 1943 | 79 | #726 | 0 | – |
| 1942 | 53 | #914 | 0 | – |
| 1941 | 89 | #646 | 0 | – |
| 1940 | 71 | #726 | 0 | – |
| 1939 | 63 | #765 | 0 | – |
| 1938 | 70 | #731 | 0 | – |
| 1937 | 67 | #746 | 0 | – |
| 1936 | 79 | #663 | 0 | – |
| 1935 | 72 | #720 | 0 | – |
| 1934 | 86 | #651 | 0 | – |
| 1933 | 74 | #699 | 0 | – |
| 1932 | 71 | #742 | 0 | – |
| 1931 | 100 | #586 | 0 | – |
| 1930 | 101 | #611 | 0 | – |
| 1929 | 94 | #630 | 0 | – |
| 1928 | 87 | #677 | 0 | – |
| 1927 | 100 | #632 | 0 | – |
| 1926 | 107 | #606 | 0 | – |
| 1925 | 88 | #688 | 0 | – |
| 1924 | 87 | #708 | 0 | – |
| 1923 | 89 | #684 | 0 | – |
| 1922 | 57 | #924 | 0 | – |
| 1921 | 44 | #1,060 | 0 | – |
| 1920 | 68 | #813 | 0 | – |
| 1919 | 43 | #1,041 | 0 | – |
| 1918 | 34 | #1,202 | 0 | – |
| 1917 | 40 | #1,049 | 0 | – |
| 1916 | 20 | #1,614 | 0 | – |
| 1915 | 33 | #1,132 | 0 | – |
| 1914 | 26 | #1,143 | 0 | – |
| 1913 | 16 | #1,337 | 0 | – |
| 1912 | 18 | #1,115 | 0 | – |
| 1911 | 10 | #1,147 | 0 | – |
| 1910 | 13 | #895 | 0 | – |
| 1909 | 5 | #1,554 | 0 | – |
| 1908 | 7 | #1,149 | 0 | – |
| 1907 | 6 | #1,257 | 0 | – |
| 1906 | 0 | – | 0 | – |
| 1905 | 10 | #812 | 0 | – |
| 1904 | 10 | #780 | 0 | – |
| 1903 | 0 | – | 0 | – |
| 1902 | 0 | – | 0 | – |
| 1901 | 0 | – | 0 | – |
| 1900 | 6 | #1,225 | 0 | – |
| 1899 | 0 | – | 0 | – |
| 1898 | 0 | – | 0 | – |
| 1897 | 5 | #1,132 | 0 | – |
| 1896 | 0 | – | 0 | – |
| 1895 | 0 | – | 0 | – |
| 1894 | 0 | – | 0 | – |
| 1893 | 0 | – | 0 | – |
| 1892 | 8 | #825 | 0 | – |
| 1891 | 0 | – | 0 | – |
| 1890 | 0 | – | 0 | – |
| 1889 | 0 | – | 0 | – |
| 1888 | 0 | – | 0 | – |
| 1887 | 0 | – | 0 | – |
| 1886 | 0 | – | 0 | – |
| 1885 | 5 | #1,002 | 0 | – |
Highest rank
As a boy name, Guillermo reached #352 in 1996. As a girl name, it reached #6,918 in 1966. Ranks count every name SSA published for that year and sex, so they go well past the top 1,000.
Names from the same era
These names were also most popular in the 1990s, with a similar number of babies. They can work as sibling or middle names that feel like they belong together.
Source: US Social Security Administration baby name data, 1880–2024. Counts are Social Security card applications for US births; SSA leaves out names given to fewer than 5 babies in a year. Updated 2026-10-05. How these numbers are made.