Definitions of Keith:

• name:  A male given name (very common: 1 in 324 males; popularity rank in the U.S.: #59)
• name:  A surname (common: 1 in 5000 families; popularity rank in the U.S.: #577)
• name:  A female given name (rare: 1 in 100000 females; popularity rank in the U.S.: #3799)