Grayson James Allen (born October 8, 1995) is an American professional basketball player for the Phoenix Suns of the National Basketball Association (NBA). He played four years of college basketball at Duke University, where he helped Duke win a national championship in 2015. He has often been called one of Duke's best players of the 2010s, but his reputation was marred by dirty plays. Allen was drafted with the 21st overall pick in the 2018 NBA draft by the Utah Jazz, where he played for one season before being traded to the Memphis Grizzlies in July 2019. In August 2021, Allen was traded to the Milwaukee Bucks, where he played for two seasons before being traded to the Suns in September 2023.