Mitsuko is a girl name. It last appeared in U.S. Social Security records in 1981. Mitsuko first appears in the data in 1911 and reached its peak in 1919 (48 births). The chart below shows how the name has risen and fallen over time.
| Year | U.S. births | Rank |
|---|---|---|
| 1981 | 5 | #15,467 |
| 1943 | 5 | #7,608 |
| 1936 | 9 | #4,998 |
| 1935 | 9 | #5,139 |
| 1934 | 7 | #5,969 |
| 1933 | 12 | #4,254 |
| 1932 | 11 | #4,669 |
| 1931 | 13 | #4,163 |
| 1930 | 11 | #4,829 |
| 1929 | 24 | #2,945 |
| 1928 | 21 | #3,327 |
| 1927 | 24 | #3,149 |
| 1926 | 29 | #2,742 |
| 1925 | 39 | #2,303 |
| 1924 | 25 | #3,155 |
| 1923 | 24 | #3,168 |
| 1922 | 43 | #2,182 |
| 1921 | 34 | #2,538 |
| 1920 | 37 | #2,388 |
| 1919 | 48 | #1,976 |
| 1918 | 43 | #2,110 |
| 1917 | 31 | #2,463 |
| 1916 | 16 | #3,801 |
| 1915 | 20 | #3,134 |
| 1914 | 11 | #4,021 |
| 1913 | 9 | #3,987 |
| 1911 | 5 | #4,296 |