MallowbyNames

Caspian

KASS-pee-uhn · Of uncertain meaning, likely relating to the Caspian Sea or the ancient Caspian people.

2025 rank (boys)
#491
Babies named in 2025
614
Peak popularity
2025
2025 frequency
1 in 2,782 boys
Usually for
Boys
Trend
Rising since 1999

Rising since 1999, #491 for boys today.

Popularity of Caspian since 1998

Babies named Caspian per year in U.S. Social Security records.

205409614200020102020Most births 2025Boys
Data table (by decade)
DecadeBoys
1990s19
2000s189
2010s1,395
2020s2,567

Meaning & origin

Caspian entered the U.S. baby name charts in 1998, a rare and evocative choice drawn from the world's largest inland sea. In 2025, it ranked 491st, given to approximately 1 in 2,782 baby boys, and reached its peak popularity that same year, reflecting a steady upward trajectory that began in 1999. The name has been adopted primarily by families in Maine, Hawaii, and Oregon, states that often favor distinctive nature-inspired names. Its literary connection to C.S. Lewis's character Prince Caspian likely boosted awareness, though the name retains an appeal as a geographical and historical reference. Caspian remains an uncommon but recognizable choice, climbing slowly in usage without entering the mainstream.

Caspian is derived from the name of the Caspian Sea, which itself comes from the Latin 'Caspium mare,' from the Greek 'Kaspion pelagos,' ultimately named after the ancient Caspii people who lived near its shores. The name appears in the Bible (Caspian is not directly biblical, but the Caspian Sea is mentioned in apocryphal texts). In modern English, Caspian gained popularity as a given name, partly due to its use in C.S. Lewis's 'The Chronicles of Narnia' (Prince Caspian, 1949), though the character's name was inspired by the sea.

Where Caspian is most popular

Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.

Fewermore per 100k boystoo few births

Caspian” around the world

Where Caspian lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • Quebec

    5

    babies in 2025

Sources: Retraite Québec (Quebec).

Nicknames & variants

Nicknames: Cas, Caspy

Sibling names for Caspian

Names that share Caspian's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

C is for Caspian, our favorite little boy.

C is for Caspian…”

In a Mallowby alphabet book, Caspian's letter becomes Caspian's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Caspian's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Caspian mean?
The name Caspian is primarily associated with the Caspian Sea, the world's largest inland body of water. Its origin is uncertain but likely refers to the ancient Caspii people.
Is Caspian a popular name?
Caspian is a relatively rare name. As of 2025, it ranked 491st in the United States, with approximately 1 in every 2,782 baby boys given the name that year.
Is Caspian a boy's or girl's name?
Caspian is almost exclusively used as a boy's name. While it can be unisex in theory, data shows it is overwhelmingly given to boys.