Omah is a very rare variant of Oma that was most common in the 1910s and has all but disappeared.
Omah is a girl name. It last appears in U.S. records in 1935. Omah first appears in 1884 and peaked in 1919 (10 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1935 | 5 | — | #4,729 |
| 1933 | 6 | — | #4,109 |
| 1931 | 5 | — | #4,817 |
| 1929 | 5 | — | #5,101 |
| 1928 | 8 | — | #3,674 |
| 1927 | 8 | — | #3,784 |
| 1926 | 5 | — | #5,434 |
| 1925 | 5 | — | #5,583 |
| 1923 | 6 | — | #4,832 |
| 1922 | 5 | — | #5,592 |
| 1921 | 6 | — | #4,945 |
| 1920 | 5 | — | #5,575 |
| 1919 | 10 | — | #3,170 |
| 1918 | 7 | — | #4,175 |
| 1917 | 5 | — | #5,129 |
| 1916 | 7 | — | #3,833 |
| 1915 | 6 | — | #4,135 |
| 1912 | 8 | — | #2,301 |
| 1908 | 7 | — | #1,807 |
| 1907 | 7 | — | #1,771 |
| 1906 | 6 | — | #1,893 |
| 1896 | 8 | — | #1,278 |
| 1894 | 5 | — | #1,652 |
| 1884 | 5 | — | #1,130 |