Uncommon Portuguese Boy Names
European and Brazilian Portuguese share many names, with some differences in spelling and everyday use. Every name shown is outside the latest U.S. Top 1000 for the sex displayed, including names without a published count that year. The figures describe these spellings in U.S. records; they are not rankings in the source language’s home countries.
| Save name | Name & connection | History 1926–2025, yearly counts; individually scaled | Babies 2025 · rank | 5-year rank movement | Peak year |
|---|---|---|---|---|---|
Recorded in Portuguese; in U.S. records from 1888. | 140#1,347 | Up 143 rank positions in five years | 1995 | ||
Recorded in Portuguese; in U.S. records from 1880. | 20#5,020 | Down 1,463 rank positions in five years | 1916 | ||
Recorded in Portuguese as Hamílton; in U.S. records from 1880. | 38#3,151 | Down 779 rank positions in five years | 2016 | ||
Recorded in Portuguese; in U.S. records from 1915. | 67#2,148 | Down 469 rank positions in five years | 2003 | ||
Recorded in Portuguese; in U.S. records from 1913. | 110#1,559 | Up 59 rank positions in five years | 2006 | ||
Recorded in Portuguese as Ramsés; in U.S. records from 1970. | 95#1,721 | Down 8 rank positions in five years | 2008 | ||
Recorded in Portuguese as Fábio; in U.S. records from 1915. | 50#2,613 | Down 137 rank positions in five years | 2006 | ||
Recorded in Portuguese; in U.S. records from 1915. | 25#4,158 | Up 4,058 rank positions in five years | 1970 | ||
Recorded in Portuguese; in U.S. records from 1880. | —Unranked | — | 1921 | ||
Recorded in Portuguese; in U.S. records from 1888. | 28#3,859 | Up 1,423 rank positions in five years | 1922 | ||
Recorded in Portuguese; in U.S. records from 1915. | 15#6,078 | Down 1,252 rank positions in five years | 2004 | ||
Recorded in Portuguese; in U.S. records from 1948. | 5#12,659 | Down 4,375 rank positions in five years | 1988 | ||
Recorded in Portuguese as Anastácio; in U.S. records from 1880. | 7#9,770 | Down 987 rank positions in five years | 1924 | ||
Recorded in Portuguese; in U.S. records from 1920. | 51#2,579 | Up 317 rank positions in five years | 2023 | ||
Recorded in Portuguese as Lênin; in U.S. records from 1925. | 43#2,910 | Down 457 rank positions in five years | 2018 | ||
Recorded in Portuguese; in U.S. records from 1896. | 5#12,366 | Down 4,179 rank positions in five years | 1945 | ||
Recorded in Portuguese; in U.S. records from 1897. | —Unranked | — | 1927 | ||
Recorded in Portuguese as Cícero; in U.S. records from 1880. | 5#12,396 | Steady | 1920 | ||
Recorded in Portuguese; in U.S. records from 1916. | —Unranked | — | 1966 | ||
Recorded in Portuguese; in U.S. records from 1971. | 16#5,826 | Up 129 rank positions in five years | 1999 | ||
Recorded in Portuguese; in U.S. records from 1910. | —Unranked | — | 1938 | ||
Recorded in Portuguese; in U.S. records from 1920. | 7#10,166 | Down 120 rank positions in five years | 1990 | ||
Recorded in Portuguese as Cesário; in U.S. records from 1914. | —Unranked | — | 1937 | ||
Recorded in Portuguese; in U.S. records from 1964. | 25#4,147 | Up 2,505 rank positions in five years | 2019 |
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Sources & methodology
Meaning summaries use Wiktionary (CC BY-SA 4.0) and referenced name histories. Each name’s detail page includes its sources.
Membership on this list is editorial — we chose names that genuinely fit the theme. Every number is from official birth data: "—" means the name had fewer than 5 recorded uses in 2025, which makes it a genuinely rare pick today, not an invalid one. The dot marks whether the stats shown are for the girls' or boys' use of the name.