Quick answer
Aslan is a boy name meaning "lion".
Pronunciation: Turkish /as.ˈlan/.
Meaning and history
From Turkic arslan meaning "lion". This was a byname or title borne by several medieval Turkic rulers, including the Seljuk sultan Alp Arslan (a byname meaning "brave lion") who drove the Byzantines from Anatolia in the 11th century. The author C. S. Lewis later used the name Aslan for the main protagonist (a lion) in his Chronicles of Narnia series of books, first appearing in 1950.
Notes and context
Usage: turkish, kazakh, azerbaijani, chechen, ossetian, circassian, literature | Kazakh: Аслан; Western Circassian: Аслъан; Eastern Circassian: Аслъэн