The baby name Kazuo appears in baby name data for the United States from 1912 to 1935. It was most popular in 1921 with 51 babies given the name.
Over the period shown, Kazuo has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1912 | 12 |
| 1913 | 14 |
| 1914 | 12 |
| 1915 | 24 |
| 1916 | 39 |
| 1917 | 26 |
| 1918 | 24 |
| 1919 | 45 |
| 1920 | 34 |
| 1921 | 51 |
| 1922 | 40 |
| 1923 | 44 |
| 1924 | 40 |
| 1925 | 34 |
| 1926 | 28 |
| 1927 | 34 |
| 1928 | 14 |
| 1929 | 22 |
| 1930 | 26 |
| 1931 | 14 |
| 1932 | 18 |
| 1935 | 18 |