Alethea
How to say it: al-uh-THEE-uh · /ˌæləˈθiːə/
From Greek 'aletheia' meaning 'truth' - used in England since the 16th century.
Alethea was the 1,401st most popular girls’ name in the United States in 2025, given to 54 babies (Social Security Administration). Its busiest decade was the 1970s, its births are up about 24% in ten years, and it is projected to rise to #1,171 by 2030.
Updated · SSA 2025 data, published May 2026 · How we compute these figures
Key facts
| Rank among girls’ names, 2025 | #1,401 |
|---|---|
| Babies born in 2025 | 54 |
| Share of births | 1 in 29,601 |
| Peak decade | 1970s |
| Change over 10 years | +24% |
| Projected rank for 2030 (estimate) | #1,171 |
Sources: Social Security Administration (SSA). How we compute these figures.
Its life, decade by decade
Alethea peaked in the 1970s.
What goes with it
Parents who love Alethea also love
Nicknames
- Thea
- Alea
- Letty
Other spellings
Honouring a Alethea in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Alethea is about under 1 in 200.
Around the world
This spelling is used in English, Greek.
Famous people named Alethea
- Alethea Arnaquq-Baril (born 1978)Canadian filmmaker
- Alethea Howard, Countess of Arundel (1585–1654)English noble and art patron
- Alethea McGrath (1920–2016)Australian actress
From Wikidata and Wikipedia
Keep exploring
In the same lists
Find names you'll both love, starting with Alethea
The one-minute style quiz.