Primarily a boy's name · 100% boys
→ See names similar to Kazuo · Popular names of the 1920s · Boys names starting with K
Rank is among all boys' names registered that year.
| Year | Babies | Rank |
|---|---|---|
| 1911 | 6 | #1,643 |
| 1912 | 12 | #1,482 |
| 1913 | 20 | #1,160 |
| 1914 | 17 | #1,526 |
| 1915 | 30 | #1,199 |
| 1916 | 30 | #1,227 |
| 1917 | 34 | #1,159 |
| 1918 | 44 | #1,023 |
| 1919 | 48 | #978 |
| 1920 | 44 | #1,059 |
| 1921 | 57 | #933 |
| 1922 | 53 | #965 |
| 1923 | 44 | #1,076 |
| 1924 | 36 | #1,214 |
| 1925 | 39 | #1,133 |
| 1926 | 31 | #1,313 |
| 1927 | 32 | #1,310 |
| 1928 | 21 | #1,677 |
| 1929 | 18 | #1,832 |
| 1930 | 25 | #1,480 |
| 1931 | 16 | #1,890 |
| 1932 | 20 | #1,621 |
| 1934 | 6 | #3,487 |
| 1935 | 13 | #2,089 |
| 1936 | 7 | #3,027 |
| 1937 | 6 | #3,340 |
| 1938 | 7 | #3,025 |
| 1939 | 6 | #3,294 |
| 1943 | 6 | #3,394 |
| 1944 | 5 | #3,683 |
| 2006 | 5 | #13,058 |
| 2007 | 5 | #13,425 |
| 2008 | 7 | #10,492 |
| 2009 | 7 | #10,458 |