Gillermo
- Gender
- Boy
- Say it
- gee-YEHR-moh
- Origin
- Germanic
Gillermo is a boys' name of Germanic origin, meaning “resolute protector”. Too few babies were given it in the latest year to rank.
What does Gillermo mean?
Germanic: variant of Guillermo, Spanish form of William
“resolute protector”
A variant spelling of Guillermo, the Spanish form of William, from Germanic words for will and helmet.
Is Gillermo a girl's or a boy's name?
Gillermo is a boys' name.
How popular is Gillermo in the US?
No boys in the US were given it in 2025, or too few to be listed. Its busiest year was 1993, with 21 boys. It first appears in the records in 1922.
Half of all the boys named Gillermo in the US since 1880 were born between 1954 and 1993, the years shaded on the chart below.
Gillermo in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2011 | 5 | #12,280 |
| 2010 | 0 | – |
| 2009 | 5 | #12,486 |
| 2008 | 7 | #9,864 |
| 2007 | 6 | #10,915 |
| 2006 | 5 | #12,048 |
| 2005 | 6 | #10,144 |
| 2004 | 0 | – |
| 2003 | 8 | #7,824 |
| 2002 | 10 | #6,515 |
| 2001 | 0 | – |
| 2000 | 7 | #8,202 |
| 1999 | 16 | #4,336 |
| 1998 | 21 | #3,482 |
| 1997 | 15 | #4,241 |
| 1996 | 13 | #4,606 |
| 1995 | 15 | #4,046 |
| 1994 | 0 | – |
| 1993 | 21 | #3,135 |
| 1992 | 10 | #5,228 |
| 1991 | 15 | #3,806 |
| 1990 | 12 | #4,401 |
| 1989 | 12 | #4,265 |
| 1988 | 11 | #4,157 |
| 1987 | 9 | #4,567 |
| 1986 | 7 | #5,327 |
| 1985 | 13 | #3,398 |
| 1984 | 11 | #3,698 |
| 1983 | 15 | #2,911 |
| 1982 | 7 | #5,001 |
| 1981 | 9 | #4,151 |
| 1980 | 9 | #4,133 |
| 1979 | 15 | #2,896 |
| 1978 | 8 | #4,155 |
| 1977 | 7 | #4,580 |
| 1976 | 15 | #2,708 |
| 1975 | 11 | #3,244 |
| 1974 | 9 | #3,556 |
| 1973 | 7 | #4,052 |
| 1972 | 18 | #2,158 |
| 1971 | 10 | #3,144 |
| 1970 | 12 | #2,738 |
| 1969 | 5 | #4,403 |
| 1968 | 0 | – |
| 1967 | 0 | – |
| 1966 | 8 | #2,985 |
| 1965 | 0 | – |
| 1964 | 9 | #2,853 |
| 1963 | 6 | #3,645 |
| 1962 | 0 | – |
| 1961 | 5 | #4,063 |
| 1960 | 5 | #4,036 |
| 1959 | 6 | #3,618 |
| 1958 | 8 | #3,031 |
| 1957 | 0 | – |
| 1956 | 9 | #2,796 |
| 1955 | 0 | – |
| 1954 | 8 | #2,940 |
| 1953 | 6 | #3,423 |
| 1952 | 7 | #3,092 |
| 1951 | 5 | #3,712 |
| 1950 | 7 | #3,020 |
| 1949 | 7 | #3,018 |
| 1948 | 7 | #3,009 |
| 1947 | 6 | #3,369 |
| 1946 | 6 | #3,171 |
| 1945 | 0 | – |
| 1944 | 0 | – |
| 1943 | 7 | #2,962 |
| 1942 | 0 | – |
| 1941 | 6 | #3,132 |
| 1940 | 0 | – |
| 1939 | 7 | #2,829 |
| 1938 | 0 | – |
| 1937 | 0 | – |
| 1936 | 6 | #3,146 |
| 1935 | 0 | – |
| 1934 | 5 | #3,677 |
| 1933 | 0 | – |
| 1932 | 9 | #2,638 |
| 1931 | 0 | – |
| 1930 | 6 | #3,590 |
| 1929 | 12 | #2,316 |
| 1928 | 8 | #3,074 |
| 1927 | 9 | #2,911 |
| 1926 | 0 | – |
| 1925 | 7 | #3,406 |
| 1924 | 8 | #3,259 |
| 1923 | 6 | #3,819 |
| 1922 | 5 | #4,305 |
Nicknames for Gillermo
- Memo
Names like Gillermo
Names given in the same years and the same naming tradition, with a similar sound.
Gerardo, Guillermo, William, Alonzo, Gilberto, Roberto, Ramiro, Ricardo, Jesse, Robert, Gustavo, Fernando
More Germanic names
Amelia, Liam, Henry, Charlotte, Archie, Charlie, Emma, Freddie, Ella, Harry, Millie, Albie, Matilda, Louie, Miles, Alice
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, “Gillermo: name meaning, origin and popularity”, https://www.nameling.co.uk/names/gillermo, updated 20 October 2026.