Reiko

In the United States, 35 babies were named Reiko between 2020 and 2025.

Shape drawn from US Social Security baby-name records. Reiko 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

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In South Australia, 1 boy was registered as Reiko in 2017.
The count never rose above 1 in a year, too few to chart.

Births registered in South Australia (not all of Australia) by first name and year of registration, 1944–2017, from the state’s Births, Deaths and Marriages registry, which publishes every name down to a single birth in capitals; a spelling its export repeats inside a year is counted once, and from 2018 only a top 100 is published, so the series ends at 2017. Source: Consumer and Business Services (South Australia), popular baby names

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At the 2022 census, 319 people in Brazil were named Reiko, ranked 18,217th, with a median age of 78.
Among people named Reiko living in Brazil at the 2022 census, more were born in the 1940s 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

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In Spain, 33 residents are named Reiko, ranked 20,374th among women, with a mean age of 53 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

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Reiko is not on the 2024 record for Argentina, where small counts are withheld at source.
The count never rose above 2 in a year, too few to chart.

Given-name components of births in Argentina 2012–2024; national cells are lower bounds and no sex split is published. Source: RENAPER (Argentina), Dirección Nacional de Población, given names 2012-2024

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Reiko is not on the 2024 record for Canada, where names under 5 in a year are excluded at source.
The count never rose above 7 in a year, too few to chart.

First given names from provincial and territorial vital statistics across Canada; any name-sex-year under 5 is excluded at source, and small Quebec counts carry a randomized adjustment made at source. Shares divide by Statistics Canada’s count of live births for the year; the 2024 count is preliminary. Source: Statistics Canada, first names at birth (table 17-10-0147-01)

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Reiko is not on the 2025 record for England and Wales, where spellings under 3 in a year are withheld at source.
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

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Reiko is not on the 2011 record for Montevideo, whose registry withholds nothing, so the spelling was not given there that year.
The count never rose above 1 in a year, too few to chart.

Births in the department of Montevideo (not all of Uruguay) by first name and year of birth, 1940–2011, from the city’s civil registry, which writes names in capitals, almost always without accents; counted as spelling groups (accent and punctuation variants merged), nothing is withheld at source, and 2012 is excluded as a partial year. Source: Servicio de Registro Civil, Intendencia de Montevideo, Partidas de Registro Civil de Montevideo (Licencia de Datos Abiertos - Uruguay); 2012 dropped as partial

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