Caspian can refer to:
The Caspian Sea The Caspian Depression, surrounding the northern part of the Caspian Sea The Caspians, the ancient people living near the Caspian Sea The Caspian languages spoken in northern Iran and southeastern Azerbaijan The Northeast Caucasian languages, also referred to as 'Caspian languages,' spoken in the Russian Caucasus and northern Azerbaijan
In fiction Prince Caspian, a book in the Chronicles of Narnia series by C. S. Lewis Caspian X, "Prince Caspian", a prince of the Telmarines The Chronicles of Narnia: Prince Caspian, a film based on the novel by C. S. Lewis Caspian (Highlander), a fictional character on Highlander: The Series Judson Caspian, alter-ego of one of three characters named the Reaper (DC Comics) Caspian Keyes, a main character in Pantheon
Other uses Caspian cobra, a species of snake endemic to Central Asia Caspian horse, a small horse breed native to Northern Iran Caspian tiger, a Panthera tigris population native Northern Iran and Caucasus Caspian Airlines, an airline based in Tehran, Iran Caspian (band), an instrumental post-rock band Caspian, Michigan, a small city in the United States USS Caspian (ID-1380), proposed designation for a tug that never actually served in the United States Navy