Guilherme vs Guillermo
Side-by-side comparison of Guilherme and Guillermo - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Guilherme | Guillermo |
| Current Rank | #12526 | #831 |
| Total Births (all years) | 522 | 32,074 |
| Peak Year | 2006 | 1998 |
| Peak Year Births | 39 | 693 |
| Peak Decade | 2000s | 1990s |
| Gender | Boy | Boy |
| First Recorded Year | 1921 | 1885 |
Births by Decade
| Decade | Guilherme | Guillermo |
| 1880s | - | 5 |
| 1890s | - | 13 |
| 1900s | - | 44 |
| 1910s | - | 253 |
| 1920s | 6 | 821 |
| 1930s | - | 783 |
| 1940s | - | 943 |
| 1950s | - | 1,495 |
| 1960s | - | 2,107 |
| 1970s | - | 3,357 |
| 1980s | 6 | 4,363 |
| 1990s | 63 | 6,462 |
| 2000s | 257 | 6,095 |
| 2010s | 149 | 3,615 |
| 2020s | 41 | 1,718 |
Recent Annual Births (2014–present)
| Year | Guilherme | Guillermo |
| 2014 | 12 | 376 |
| 2015 | 12 | 389 |
| 2016 | 15 | 322 |
| 2017 | 18 | 289 |
| 2018 | 9 | 314 |
| 2019 | 17 | 320 |
| 2020 | 11 | 275 |
| 2021 | 10 | 299 |
| 2022 | 7 | 287 |
| 2023 | - | 294 |
| 2024 | 5 | 299 |
| 2025 | 8 | 264 |