Justin Holiday is the oldest of three brothers in the NBA. Middle brother Jrue plays for the Milwaukee Bucks and youngest brother Aaron Holiday plays for the Atlanta Hawks. The Holidays became the first trio of brothers in NBA history to play in the same game on December 28, 2019, when Justin and Aaron played for the Indiana Pacers and Jrue played for the New Orleans Pelicans.
Justin played for Washington University in college earning a place on the Pac-10 All-Defensive Team in 2010. In 2011, Holiday started his professional career for the Okapi Aalstar in Belgium. Justin made his NBA debut in 2013 with the Philadelphia 76ers and won an NBA Championship with the Golden State Warriors in 2015.