Dag
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Meaning
from the Old Norse word dagr, "day"
How popular is Dag around the world?
In the United States, Dag is not on the Social Security record for 2020 to 2025: names under 5 in a year are withheld at source. In Norway, 6 boys were given the name Dag in 2025.
Dag is on the official records of Norway.
United States
under 5 a year
In the United States, Dag 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. Dag 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 4,800register 2026
In Norway, 6 boys were given the name Dag in 2025.
share of the boys 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)
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).
Keep exploring
The Dag deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Dag 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 Dag fits with your family’s names and surname.
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