Girl Name
Alethea
Alethea is a girl's name whose meaning is not firmly attested in the historical record. It is used as a girl's name across several naming traditions, and it is rare in the United States today — outside the SSA top 1,000.
Alethea — a girl name — is an uncommon, standout choice. If Althea is on your shortlist, Alethea belongs in the same conversation.
Alethea meaning, origin, and usage
Meaning: Alethea has a distinctive sound and evolving modern usage.
Origin: Multiple naming traditions are associated with this name.
Pronunciation: Baby Name Studio pronounces Alethea as A·L·E·T·H·E·A, with 7 letters and a girl usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Alethea is an uncommon, standout choice in the Rare tier.
Alethea variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Aletheaa, Aletheae, Aletheay, Alethe.
- Nicknames: Alet and A.
- Middle names: Pair Alethea with a middle name that balances its substantial sound; start with the Alethea middle name generator.
- Sibling names: Althea, Alethia, Aleatha, Aletha, Aleta — full picks on the sibling names for Alethea guide for a cohesive sibset.
- Similar names: Looking for names that sound like Alethea? Browse our names like Alethea guide for phonetic-neighbor picks.
- Explore more: use the Baby Name Explorer, name search, AI name generator, and Baby Name Studio homepage.
Frequently asked about Alethea
What does the name Alethea mean?
Alethea has no single meaning that is firmly attested in the historical record. It is used as a girl name in US birth records, and parents usually choose it for its sound rather than a documented meaning.
What is the origin of Alethea?
The exact origin of Alethea is debated, but it has been used across multiple naming traditions.
How do you pronounce Alethea?
Alethea has 7 letters and is most commonly stressed on the first syllable.
Is Alethea a boy's or girl's name?
Alethea is primarily used as a girl's name in US records.
How popular is Alethea in 2026?
In our 2026 popularity tracker, Alethea sits in the Rare tier — an uncommon, standout choice.
What names are similar to Alethea?
Names that share Alethea's sound and style include Althea, Alethia, Aleatha, Aletha, Aleta.
What middle names pair well with Alethea?
Good middle-name fits for Alethea pair an opposite syllable rhythm: if Alethea is short, lean longer (e.g. classical or three-syllable middles); if Alethea is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Alethea?
Sibling names that pair naturally with Alethea share its rhythm without rhyming — Althea, Alethia, Aleatha all sit comfortably alongside it on a shortlist.