Nicolau
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Meaning
victory of the people (Portuguese form of the Italian Niccolò)
Sources list Nicolau among the forms of Nicholas (Catalan · Galician · Portuguese).
How popular is Nicolau around the world?
In the United States, 5 babies were named Nicolau between 2020 and 2025. At the 2022 census, 5,941 people in Brazil were named Nicolau, ranked 2,430th, with a median age of 62.
Nicolau is on the official records of the United States, Brazil, Spain and England and Wales.
United States
1 in 4.4M
In the United States, 5 babies were named Nicolau between 2020 and 2025.
Nicolau appears in US Social Security baby-name records only in small numbers: never enough in any decade to draw a popularity curve.
Births with a Social Security record. Source: U.S. Social Security Administration
Brazil
1 in 34,000
At the 2022 census, 5,941 people in Brazil were named Nicolau, ranked 2,430th, with a median age of 62.
Among people named Nicolau living in Brazil at the 2022 census, more were born in the 1950s than in any other decade.
people alive at the 2022 census, by decade of birth
The census also counted 46 born between 2020 and August 2022, too recent a span to chart. People alive and resident in Brazil at the 2022 census, a living-population count, not births; names under 20 are withheld at source. Source: IBGE, Censo Demográfico 2022
Spain
1 in 75,000
In Spain, 599 residents are named Nicolau, ranked 2,022nd among men, with a mean age of 30.9 years.
Residents of Spain on 1 January 2025. Spain publishes how old a name’s living bearers are, not a birth series, so there is no year chart. Source: INE (Spain), Censo de Población anual, 1 January 2025
England and Wales
1 in 150,000
In England and Wales, 4 boys named Nicolau were born in 2025, ranked 4,275th among boys that year.
The count never rose above 4 in a year, too few to chart.
Birth registrations in England and Wales (not the whole UK); exact spellings are counted separately, and any spelling under 3 in a year is withheld at source. Source: Office for National Statistics, baby names in England and Wales
Not on the record in Mexico City, Argentina, Puerto Rico, Canada, Ireland, New Zealand, Scotland and Poland: those registries withhold small counts, so rare uses may sit below their floors.
Not on the Chile record: nametree keeps spellings that reached 5 registrations in some year, so rarer uses are not shown. Not on the Montevideo record for 1940 to 2011: that registry withholds nothing, so this spelling was not given there in those years. Not on the France record: nametree keeps spellings that reached 20 births in some year, so rarer uses are not shown. Not on the South Australia record for 1944 to 2017: that registry withholds nothing, so this spelling was not given there in those years. Not on the Austria record for 1984 to 2025: Statistik Austria publishes every first name down to a single birth, so this name was not given there in those years (before 2010 the record covers babies with Austrian citizenship only). Not on Norway’s list: Statistics Norway lists only first names carried by 200 or more living people, so rarer names are not shown.
The Nicolau deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Nicolau truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Nicolau fits with your family’s names and surname.
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