Willard Christopher "Trey" Smith III (born November 11, 1992 in Los Angeles, California) is an American actor.

He is the son of Will Smith and his first wife Sheree Zampino. His stepmother is Jada Pinkett Smith, who affectionately calls him her "bonus son", mother of half-siblings Jaden Smith and Willow Smith.

Trey was the inspiration for Smith's song "Just the Two of Us" and also the star of the video. He has served as Access Hollywood's special correspondent for events such as Nickelodeon's Kids Choice Awards . He had a guest role in the TV series All of Us. Smith also appeared in several promotional events for Jaden's first film: The Pursuit of Happyness.