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The name Deleon is commonly a male name from the "Spanish" origin.
Deleon is an anglicized spelling of the Spanish surname de León, which identifies a person from the city or former kingdom of León in northwestern Spain. It appears in United States birth records as a given name from 1917, following the American practice of handing down surnames as first names. The place name León derives from Latin legio, legion, rather than from the Spanish word león, lion.
The pronunciation of Deleon is duh-LEE-on.