Eider
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Meaning
a feminine form of Eder, from the Basque word eder, "handsome, beautiful"
How popular is Eider around the world?
In the United States, 706 babies were named Eider between 2020 and 2025. In Mexico City, there were 20 registrations of Eider in 2022.
Eider is on the official records of the United States, Mexico City, Spain, Chile and Argentina.
United States
1 in 31,000
In the United States, 706 babies were named Eider between 2020 and 2025.
Births with a Social Security record. Source: U.S. Social Security Administration
Mexico City City
1 in 5,900
In Mexico City, there were 20 registrations of Eider in 2022.
share of that year’s registrations in the city
Civil-registry acts in Mexico City by registration year. Counts are lower bounds (names under 6 in a month and borough are removed at source) and count name-instances, not people; compound names are split, so “Maria Jose” counts under each part. 2023 (1 registration through 3 Mar) is excluded as partial. Source: Registro Civil of Mexico City, open data portal, registered given names 2000-2023
Spain
1 in 8,500
In Spain, 5,136 residents are named Eider, the 455th most common name among women, with a mean age of 24.7 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
Chile
1 in 8,900
In Chile, 20 boys were registered as Eider in 2021, every accent spelling counted together.
share of that year’s name registrations
First-name registrations with Chile’s civil registry by year of registration, 1920–2021, counted as spelling groups (Sofía, Sofia and Sofìa are one name, shown with its most-registered spelling); the registry withholds nothing, nametree keeps the groups that reached 5 registrations in some year, and shares divide by every registration of the year. Source: Servicio de Registro Civil e Identificación (Chile) via the guaguas package, first-name registrations 1920-2021
Argentina
1 in 28,000
In Argentina, 24 newborns were given the name Eider in 2024.
share of that year’s name registrations
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
Puerto Rico
last on record 2024
Eider is not on the 2025 record for Puerto Rico, which withholds births under 5, and 12 babies have carried the name there since 1998.
The count never rose above 7 in a year, too few to chart.
First given name only, from Social Security records of births in Puerto Rico; any name-sex-year under 5 births is withheld at source. Shares divide by the Puerto Rico Demographic Registry’s count of births on the island; the 2025 count is provisional. Source: U.S. Social Security Administration, territory name file (Puerto Rico)
Not on the record in 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 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.
When you meet Eider
Most people given the name Eider in the United States are children or teenagers today. The name belongs to this generation.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Eider deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Eider 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 Eider fits with your family’s names and surname.
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