Osa was the #10,107 girls' name in the US in 2025 (9 babies).
Osa as a girl’s name
US
Babies per 1,000 of the same sex in each published list.Official rank; #1 at the top. Breaks in a line are years with too few babies to be published.Show the numbers
Year
US
2025
#10,107 (9)
2024
#13,477 (6)
2023
#15,194 (5)
2021
#15,251 (5)
2019
#15,539 (5)
2017
#14,124 (6)
2011
#14,824 (6)
1964
#6,767 (5)
1950
#3,962 (8)
1948
#5,243 (5)
1947
#4,007 (8)
1946
#3,665 (8)
1941
#4,420 (5)
1940
#4,349 (5)
1939
#2,922 (9)
Osa as a boy’s name
US
Babies per 1,000 of the same sex in each published list.Official rank; #1 at the top. Breaks in a line are years with too few babies to be published.Show the numbers
Year
US
2017
#12,246 (5)
1930
#4,001 (5)
1929
#3,247 (7)
1928
#3,357 (7)
1925
#4,197 (5)
1921
#2,804 (10)
1920
#2,967 (9)
1919
#4,168 (5)
1918
#3,368 (7)
1917
#3,981 (5)
1916
#2,543 (10)
1915
#3,082 (7)
1914
#3,264 (5)
The tide so far
Peaked in the US in 1892 at #616.
In the US records since the data begins in 1880.
A comeback: it faded for decades and is rising again.
In 2017, 55% of US babies named Osa were girls.
How common is it?
about 1 in 170,000 baby girls in the published US list for 2025.
In a group of 1,000 children born that year, you would expect to meet fewer than 1. How we work this out.