The 2015 McDonald's All-American Boys Game is an All-star basketball game that was played on April 1, 2015, at the United Center in Chicago, home of the Chicago Bulls. It was the 38th annual McDonald's All-American Game for high school boys. The game's rosters features the best and most highly recruited blue chip boys high school basketball players graduating in 2015. Chicago, which became the first city to host the game in back-to-back years in 2012, continues to host the game annually for the fifth consecutive time. When the rosters for the game were announced on January 28, 15 of the 24 players had committed to Division I basketball programs; Duke and LSU led the field with two commits each.

Benjamin David Simmons is an Australian professional basketball player for the Brooklyn Nets of the National Basketball Association (NBA). He played college basketball for one season with the LSU Tigers, after which he was named a consensus first-team All-American and the USBWA National Freshman of the Year. Simmons was selected with the first overall pick in the 2016 NBA draft by the Philadelphia 76ers. After sitting out a year due to an injured right foot, he was named the NBA Rookie of the Year in 2018 and was selected three times to the NBA All-Star Game. As the result of a holdout from the 76ers following the 2020–21 season, which led him to be traded to the Nets, Simmons is the most-fined player in NBA history, in terms of total financial loss.