Names/M

Masao

boys’ nameFadedCompare

Masao is absent from the 2024 data, which means fewer than five births. Its best rank was 705th, in 1918.

Rank in 2024
fewer than 5 births
Births in 2024
0not in the data
Peak year
191881 births
Best rank
#705in 1918
Since 1907
1,018people given the name
Babies named Masao, by year of birthboys
025507510018801900192019401960198020002020

The story in the numbers

1,018 boys have been named Masao in the United States since 1907, according to Social Security records. The busiest single year was 1918, with 81 births.

The name has all but left use: none recorded in 2024, against 81 at the peak.

Half of everyone given the name was born by 1921, and the 1920s alone account for 44%. It has spent 13 of 145 years in the top 1,000.

Rank among boys, year by year

Higher on the chart = more popularrank (gaps = outside the top 1,000)
#1#250#500#750#100018801900192019401960198020002020

By decade

Decadeboys named Masao
1900s10
1910s400
1920s453
1930s114
1940s11
1960s5
1980s7
2010s18

In 1918, its biggest year

Masao was the 705th most given boy’s name that year. The top five boys’ names of 1918 were John, William, James, Robert and Charles. See all of 1918.

Names that rose and fell with Masao

Same sex, most similar popularity curve over 145 years, in five-year steps — the shape of the line, not the size.

What this page does not tell you. The Social Security data records how many babies were given a name, not what the name means or where it comes from — so neither do we. Counts cover people with a Social Security number; names given to fewer than five babies in a year are withheld. More on the data.