Kaisa
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Meaning
Finnish diminutive of Katariina/Katherine, from Greek "pure"
How popular is Kaisa around the world?
In the United States, 99 babies were named Kaisa between 2020 and 2025. In Norway, 17 girls were given the name Kaisa in 2025.
Kaisa is on the official records of the United States, Norway and Brazil.
United States
1 in 220,000
In the United States, 99 babies were named Kaisa between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Kaisa 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
Norway
1 in 1,600register 2026
In Norway, 17 girls were given the name Kaisa in 2025.
share of the girls on the register for that year, SSB’s own figure
People who have or have had a Norwegian ID number, emigrants left out, from Statistics Norway’s name statistics (release of January 2026): by year of birth for 1945–2020 (everyone born that year who was ever registered in Norway, including people who registered later and people who have since died) and by year of naming from 2021; only first names carried by 200 or more living people are listed, counts under 4 are withheld, and SSB merges spellings that differ only by letters outside the Norwegian alphabet. The shares are SSB’s own, of the people of that sex and year in that count; the 2025 figure counts the children named that year, and no year is a count of births. Source: Statistics Norway (SSB), table 10467 (updated 2026-01-28)
Brazil
1 in 330,000
At the 2022 census, 600 people in Brazil were named Kaisa, ranked 11,796th, with a median age of 23.
Among people named Kaisa living in Brazil at the 2022 census, more were born in the 1990s than in any other decade.
people alive at the 2022 census, by decade of birth
The census also counted 28 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
Canada
last on record 2014
Kaisa is not on the 2024 record for Canada, where names under 5 in a year are excluded at source.
The count never rose above 5 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)
Not on the record in Spain, Mexico City, Argentina, Puerto Rico, England and Wales, 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).
When you meet Kaisa
Most people given the name Kaisa in the United States are teenagers or young adults today.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
Keep exploring
The Kaisa deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Kaisa 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 Kaisa fits with your family’s names and surname.
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