Mamoru
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Meaning
to protect, to defend
How popular is Mamoru around the world?
In the United States, Mamoru is not on the Social Security record for 2020 to 2025: names under 5 in a year are withheld at source. At the 2022 census, 121 people in Brazil were named Mamoru, ranked 36,022nd, with a median age of 72.
Mamoru is on the official records of Brazil.
United States
under 5 a year
In the United States, Mamoru is not on the Social Security record for 2020 to 2025: names under 5 in a year are withheld at source.
Shape drawn from US Social Security baby-name records. Mamoru has stayed rare in US records the whole time: no peak decade to name.
Births with a Social Security record. Source: U.S. Social Security Administration
Brazil
1 in 1M
At the 2022 census, 121 people in Brazil were named Mamoru, ranked 36,022nd, with a median age of 72.
Among people named Mamoru 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
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
Not on the record in Spain, Mexico City, Argentina, Puerto Rico, England and Wales, 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.
Keep exploring
The Mamoru deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Mamoru 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 Mamoru fits with your family’s names and surname.
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