Definitions of Brett:

• name:  A male given name (common: 1 in 1219 males; popularity rank in the U.S.: #204)
• name:  A female given name (rare: 1 in 100000 females; popularity rank in the U.S.: #3142)
• name:  A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #5718)