Rethel is a very rare girls' name that was most common in the 1920s and has all but disappeared.
Rethel is a girl name. It last appears in U.S. records in 1956. Rethel first appears in 1917 and peaked in 1920 (9 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1956 | 5 | — | #6,692 |
| 1952 | 6 | — | #5,431 |
| 1931 | 7 | — | #3,789 |
| 1930 | 8 | — | #3,605 |
| 1929 | 5 | — | #5,151 |
| 1927 | 6 | — | #4,705 |
| 1926 | 6 | — | #4,742 |
| 1925 | 6 | — | #4,861 |
| 1924 | 6 | — | #4,943 |
| 1921 | 6 | — | #4,990 |
| 1920 | 9 | — | #3,547 |
| 1919 | 6 | — | #4,715 |
| 1918 | 7 | — | #4,205 |
| 1917 | 5 | — | #5,190 |