The baby name Oletha appears in baby name data for the United States from 1913 to 1961. It was most popular in 1917 with 29 babies given the name.
In the later years of this period, Oletha has become less common than it once was.
| Year | Count |
|---|---|
| 1913 | 14 |
| 1914 | 12 |
| 1915 | 14 |
| 1917 | 29 |
| 1918 | 24 |
| 1919 | 17 |
| 1920 | 16 |
| 1921 | 15 |
| 1922 | 15 |
| 1923 | 24 |
| 1924 | 8 |
| 1925 | 12 |
| 1926 | 17 |
| 1927 | 10 |
| 1928 | 20 |
| 1929 | 7 |
| 1930 | 6 |
| 1931 | 14 |
| 1932 | 5 |
| 1934 | 7 |
| 1935 | 6 |
| 1938 | 5 |
| 1961 | 7 |