Imo is a rare variant of Ima that was most common in the 1920s and has all but disappeared.
Imo is predominantly a girl name. It last appears in U.S. records in 1983. Imo was first reported in SSA data in 1885 and peaked in 1922 (34 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1983 | 5 | — | — | #6,672 |
| 1957 | 5 | — | #6,454 | — |
| 1952 | 5 | — | #5,895 | — |
| 1951 | 9 | — | #3,824 | — |
| 1948 | 8 | — | #4,013 | — |
| 1946 | 6 | — | #4,656 | — |
| 1945 | 9 | — | #3,235 | — |
| 1943 | 12 | — | #2,762 | — |
| 1942 | 7 | — | #3,896 | — |
| 1941 | 13 | — | #2,455 | — |
| 1940 | 13 | — | #2,350 | — |
| 1939 | 11 | — | #2,658 | — |
| 1938 | 9 | — | #3,028 | — |
| 1937 | 18 | — | #1,872 | — |
| 1936 | 9 | — | #2,960 | — |
| 1935 | 19 | — | #1,810 | — |
| 1934 | 23 | — | #1,572 | — |
| 1933 | 21 | — | #1,678 | — |
| 1932 | 33 | — | #1,280 | — |
| 1931 | 20 | — | #1,770 | — |
| 1930 | 28 | — | #1,479 | — |
| 1929 | 34 | — | #1,296 | — |
| 1928 | 34 | — | #1,323 | — |
| 1927 | 34 | — | #1,394 | — |
| 1926 | 32 | — | #1,429 | — |
| 1925 | 22 | — | #1,865 | — |
| 1924 | 17 | — | #2,248 | — |
| 1923 | 27 | — | #1,612 | — |
| 1922 | 34 | — | #1,387 | — |
| 1921 | 24 | — | #1,793 | — |
| 1920 | 28 | — | #1,567 | — |
| 1919 | 22 | — | #1,774 | — |
| 1918 | 19 | — | #1,993 | — |
| 1917 | 21 | — | #1,740 | — |
| 1916 | 22 | — | #1,652 | — |
| 1915 | 12 | — | #2,461 | — |
| 1914 | 17 | — | #1,629 | — |
| 1913 | 12 | — | #1,820 | — |
| 1912 | 14 | — | #1,506 | — |
| 1911 | 10 | — | #1,590 | — |
| 1910 | 7 | — | #2,023 | — |
| 1909 | 9 | — | #1,529 | — |
| 1908 | 12 | — | #1,232 | — |
| 1907 | 8 | — | #1,567 | — |
| 1906 | 7 | — | #1,633 | — |
| 1904 | 8 | — | #1,414 | — |
| 1903 | 9 | — | #1,254 | — |
| 1902 | 12 | — | #1,048 | — |
| 1900 | 10 | — | #1,265 | — |
| 1898 | 10 | — | #1,138 | — |
| 1897 | 12 | — | #949 | — |
| 1896 | 10 | — | #1,080 | — |
| 1895 | 13 | — | #912 | — |
| 1894 | 10 | — | #1,027 | — |
| 1892 | 5 | — | #1,551 | — |
| 1891 | 9 | — | #971 | — |
| 1890 | 8 | — | #1,048 | — |
| 1889 | 8 | — | #985 | — |
| 1888 | 6 | — | #1,202 | — |
| 1887 | 8 | — | #896 | — |
| 1885 | 9 | — | #769 | — |