Caspian hit its 2024 peak at current rank #578, with just 3,553 total SSA bearers. It is genuinely rare — a name that almost all its current bearers received in the last decade, pushed upward by one source above all others: C.S. Lewis's Chronicles of Narnia. Prince Caspian has been slowly building a real-world following for decades, and the 2024 peak suggests parents are arriving at it now.
A Sea Between Ancient Cultures
The Caspian Sea, the world's largest lake, gets its name from the Caspians — an ancient people who lived on its southwestern shore. The Greek name Kaspios likely came from an even older regional term. So Caspian is ultimately a geographic name derived from an ancient ethnonym, filtered through Greek into English. The association with the largest inland body of water on Earth gives it natural grandeur — vast, deep, borderless between civilizations.
Prince Caspian's Inheritance
C.S. Lewis invented Prince Caspian for his 1951 Narnia novel, naming the rightful king of Narnia who reclaims his throne. The character appeared in both the 2008 film adaptation (played by Ben Barnes) and earlier adaptations. Lewis chose the name for its exotic, slightly classical sound — it was uncommon enough to feel other-worldly in 1951 and remains uncommon enough in 2025 to feel distinctive. The fantasy-literary origin is the same path that brought Atticus, Finn, and Dorian into modern nurseries.
The Fantasy Name Question
Some parents hesitate at names sourced primarily from fantasy fiction, worrying that the association is too narrow or too fandom-specific. That concern is real but probably overstated: most people encountering a child named Caspian won't think of Narnia, they'll just think "unusual, beautiful name." The name works on its own phonetic terms : three syllables, CAS-pee-an, with a strong opening and a flowing close. For other literary-geographic names in the same spirit, compare Soren or Leif.