Quick answer
Léon is a boy name meaning "lion".
Pronunciation: American English /ˈli.ɑn/; British English /ˈliː.ɒn/; German /ˈleː.ɔn/; Polish /ˈlɛ.ɔn/; Slovene /ˈléː.ɔn/.
Meaning and history
This name is derived from Greek λέων ( leon ) meaning "lion". During the Christian era this Greek name was merged with the Latin cognate Leo, with the result that the two forms are used somewhat interchangeably across European languages. In England during the Middle Ages this was a common name among Jews. A famous bearer was the communist revolutionary Leon Trotsky (1879-1940), whose name is Лев in Russian.
Notes and context
Usage: english, german, dutch, polish, slovene, croatian, greek, ancient greek | Greek: Λέων