Artistikhybrid's Personal Name List

From an Irish surname, the Anglicized form of Ó Súileabháin, itself from the given name Súileabhán, which was derived from Irish súil "eye" and dubh "dark, black" combined with a diminutive suffix. This name has achieved a moderate level of popularity in France since the 1970s. In the United States it was rare before the 1990s, after which it began climbing steadily. A famous fictional bearer of the surname was James P. Sullivan from the animated movie Monsters, Inc. (2001).

Used by author C. S. Lewis for a character in his Chronicles of Narnia series, first appearing in 1950. Prince Caspian first appears in the fourth book, where he is the rightful king of Narnia driven into exile by his evil uncle Miraz. Lewis probably based the name on the Caspian Sea, which was named for the city of Qazvin, which was itself named for the ancient Cas tribe.