| Meaning | truth |
| Origin | Greek |
| Gender | Girl |
| Popularity | Moderate |
| Length | 8 |
| Syllables | 4 |
| Syllabification | A-le-thei-a |
Aletheia represents a thoughtful choice for parents seeking depth and intellectual substance in a name. The name has a scholarly, almost philosophical air about it, suggesting wisdom and contemplation. It carries weight without heaviness, offering complexity that unfolds gradually rather than announcing itself boldly. A child named Aletheia might be envisioned as someone who asks meaningful questions, seeks understanding, and values authenticity above superficiality. The name works beautifully across all ages, from a curious toddler to a distinguished professional. Its rarity ensures individuality without straying into territory that feels invented or insubstantial. Aletheia provides multiple nickname possibilities while standing magnificently on its own, making it versatile for various life stages and personal preferences.
| Al |
| Theia |
| Lexi |
| Thea |
| Aletheia Austin | American educator and activist |
| Aletheia Casey | Australian photographer |
| Aletheia Diaz | Puerto Rican actress |
| Aletheia Luna | Australian author and spiritual teacher |
| Aletheia Mifsud | Maltese weightlifter |
| Aletheia Nielsen | American singer-songwriter |
| Aletheia Stendahl | American actress |
| Aletheia Tanner | British neuroscientist |
| Aletheia van Acht | Dutch field hockey player |
| Aletheia van den Berg | South African journalist |
| Aletheia Yang | Taiwanese-American architect |
| Aletheia Young | Canadian painter |
| Aletheia Jones | Character in the novel "The Truth According to Us" by Annie Barrows |
| Aletheia Ryan | Character in the TV series "Sanctuary" |
| Aletheia Valentine | Character in the novel "The Accidental Beauty Queen" by Teri Wilson |
| Aletheia Grant | Character in the video game "Assassin's Creed Odyssey" |
| Aletheia Shipton | Character in the novel "The Fire-Eaters" by David Almond |