Letha
Usually explained as a short form of Aletha or Alethea, names drawn from the Greek aletheia, truth; the Greek river Lethe, forgetfulness, is a separate word.
Letha in 2025
Letha was not given to any babies in 2025. The Social Security Administration only publishes a name once at least five babies receive it in a year, so Letha has fallen below that threshold.
The history of Letha
Letha reached its highest point in 1918, when 473 babies were given the name, ranking 538th that year. Its best-ever ranking was 350th, in 1898.
Across the 146 years of records since 1880, 19,162 babies have been named Letha. Half of them were born before 1926, which places the name's centre of gravity with the Greatest Generation.
Letha by decade
| Decade | Babies named Letha | Best rank |
|---|---|---|
| 1880s | 433 | 518 |
| 1890s | 1,150 | 350 |
| 1900s | 1,727 | 354 |
| 1910s | 3,616 | 410 |
| 1920s | 3,780 | 578 |
| 1930s | 2,344 | 706 |
| 1940s | 1,740 | 881 |
| 1950s | 1,662 | 1,150 |
| 1960s | 1,511 | 1,263 |
| 1970s | 671 | 1,966 |
| 1980s | 300 | 3,319 |
| 1990s | 126 | 7,176 |
| 2000s | 46 | 17,070 |
| 2010s | 51 | 18,675 |
| 2020s | 5 | 27,273 |
Where Letha is heading
Letha has fallen 100% over the past decade, from 8 babies in 2015 to 0 in 2025.
That is less than 5% of its 1918 peak — Letha is now a rare name in the United States.
Names like Letha
Names that rose and fell at the same time as Letha.