How Many People Are Named Oslo?
An estimated 499 people in the United States have the first name Oslo. It is almost exclusively a male name. The average bearer is 6 years old, and Oslo peaked in popularity in 2022 with 94 births that year.
Below you will find a full statistical profile of Oslo as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Oslo paired with any surname.
Estimated Living Americans
499
About 1 in 686,882 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
6
years old
Peak Year
2022
94 births
Total Registered
502
since 1880
Gender Distribution for Oslo
Oslo is almost exclusively a male name. Out of 502 total births registered, 100.0% were male.
Oslo as a male name
Ranked #1,922 in 2024
82 male births in 2024
Peak: 2022 (94 births)
Oslo: Popularity Over Time
SSA records for Oslo span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2020s, when 351 babies were registered. Oslo remains highly popular today, with recent registration numbers near its historical peak.
Oslo by Decade
How has Oslo tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Oslo by State
Birth registrations for Oslo span all 9 states and territories in the SSA database. The highest counts are in California, Texas, Minnesota. The lowest are in Wisconsin, Utah, Indiana. On average, about 15 Oslos were registered per state.
Oslo + Last Name Combinations
How many people share a full name with Oslo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Oslo
Other first names starting with O with a similar number of bearers.
Oslo: Questions and Answers
How many people in the U.S. are named Oslo?
We estimate approximately 499 people named Oslo are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 686,882 Americans share this first name.
Is Oslo a common name?
Oslo is classified as "Very Rare" and is more popular than 84.5% of all first names in the SSA database. A total of 502 births have been registered with this name since 1880.
When was Oslo most popular?
Oslo reached peak popularity in 2022, when 94 babies were given this name. The average age of a living person named Oslo is approximately 6 years old, reflecting when the name was most commonly given.
Is Oslo a male name?
Oslo is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Oslo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Oslo Smith, Oslo Johnson, Oslo Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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