Gerald Green, Jr. (born January 26, 1986 in Houston, Texas) is an American professional basketball player with the Dallas Mavericks of the National Basketball Association. He was selected by the National Basketball Association's (NBA) Boston Celtics with the 18th pick of the first round in the 2005 NBA Draft. He has performed well in many slam dunk competitions, having won the 2005 McDonald's All-American Slam Dunk Contest and the 2007 NBA Slam Dunk Contest, while finishing as the runner-up in the 2008 NBA Slam Dunk Contest.
Green did not play high school basketball until his sophomore year, when he played junior varsity for J. Frank Dobie High School. In his junior year he made the varsity team, but his play was cut short because of academic issues.
He transferred to a charter school, Gulf Shores Academy in Houston, where he repeated his junior year. In his senior year at Gulf Shores, he averaged 33 points, 12 rebounds, 7 assists, and 3 blocked shots per game. He was named an All-American and was the high scorer in the 2005 McDonald's All-American game scoring 24 points., which features two teams composed of the best high school basketball players in the US. Green also won the McDonald's All-American Slam Dunk Contest that year, defeating future Duke player Josh McRoberts.