Imo is a girl name. It last appeared in U.S. Social Security records in 1983. Imo first appears in the data in 1885 and reached its peak in 1922 (34 births). The chart below shows how the name has risen and fallen over time.
| Year | U.S. births | Rank |
|---|---|---|
| 1983 | 5 | #15,131 |
| 1957 | 5 | #9,144 |
| 1952 | 5 | #8,452 |
| 1951 | 9 | #5,900 |
| 1948 | 8 | #6,134 |
| 1946 | 6 | #6,901 |
| 1945 | 9 | #5,106 |
| 1943 | 12 | #4,526 |
| 1942 | 7 | #6,074 |
| 1941 | 13 | #4,112 |
| 1940 | 13 | #4,007 |
| 1939 | 11 | #4,406 |
| 1938 | 9 | #4,971 |
| 1937 | 18 | #3,275 |
| 1936 | 9 | #4,880 |
| 1935 | 19 | #3,171 |
| 1934 | 23 | #2,838 |
| 1933 | 21 | #2,994 |
| 1932 | 33 | #2,334 |
| 1931 | 20 | #3,133 |
| 1930 | 28 | #2,659 |
| 1929 | 34 | #2,349 |
| 1928 | 34 | #2,402 |
| 1927 | 34 | #2,488 |
| 1926 | 32 | #2,573 |
| 1925 | 22 | #3,280 |
| 1924 | 17 | #3,931 |
| 1923 | 27 | #2,888 |
| 1922 | 34 | #2,513 |
| 1921 | 24 | #3,172 |
| 1920 | 28 | #2,810 |
| 1919 | 22 | #3,169 |
| 1918 | 19 | #3,554 |
| 1917 | 21 | #3,178 |
| 1916 | 22 | #2,999 |
| 1915 | 12 | #4,295 |
| 1914 | 17 | #2,969 |
| 1913 | 12 | #3,201 |
| 1912 | 14 | #2,648 |
| 1911 | 10 | #2,554 |
| 1910 | 7 | #3,053 |
| 1909 | 9 | #2,417 |
| 1908 | 12 | #1,952 |
| 1907 | 8 | #2,424 |
| 1906 | 7 | #2,498 |
| 1904 | 8 | #2,195 |
| 1903 | 9 | #1,975 |
| 1902 | 12 | #1,675 |
| 1900 | 10 | #2,028 |
| 1898 | 10 | #1,800 |
| 1897 | 12 | #1,560 |
| 1896 | 10 | #1,778 |
| 1895 | 13 | #1,480 |
| 1894 | 10 | #1,691 |
| 1892 | 5 | #2,496 |
| 1891 | 9 | #1,608 |
| 1890 | 8 | #1,765 |
| 1889 | 8 | #1,699 |
| 1888 | 6 | #2,072 |
| 1887 | 8 | #1,599 |
| 1885 | 9 | #1,434 |