Justin Alaric Holiday (born April 5, 1989) is an American professional basketball player for Virtus Bologna of the Lega Basket Serie A (LBA) and the EuroLeague.

As a senior, he averaged 19.1 points, 9.5 rebounds and 2.0 blocks per game as he led Campbell Hall to a 33–1 record and the state Class IV championship.

[3] He was a starter for the Belgian team alongside fellow future NBA player Chris Copeland.

[9] On November 28, he made his debut for Idaho in a 112–98 loss to the Los Angeles D-Fenders, recording 15 points and six rebounds.

[25] On October 29, he made his season debut in a 112–101 win over the New York Knicks, recording two points in 13 minutes off the bench.

[28] In 38 minutes of action, he recorded a then-season-high 14 points, 4 rebounds, 1 assist, 2 steals and 2 blocks in a 118–96 loss to the Miami Heat.

[30] On June 22, 2016, Holiday was traded, along with Derrick Rose and a 2017 second-round draft pick, to the New York Knicks in exchange for José Calderón, Jerian Grant, and Robin Lopez.

He was 4-of-13 from three-point range, marking his 31st straight game with a made three, tying Kirk Hinrich for the longest streak in team history.

[40] On January 3, 2019, Holiday was traded to the Memphis Grizzlies in exchange for MarShon Brooks, Wayne Selden Jr. and two future second-round draft picks.

[42] On July 31, 2019, Holiday signed a one-year deal worth $4.8 million with the Indiana Pacers, uniting him with his younger brother Aaron.

[44][45] On February 8, 2022, Holiday was traded, alongside Domantas Sabonis, Jeremy Lamb and a 2023 second-round draft pick, to the Sacramento Kings in exchange for Tyrese Haliburton, Buddy Hield and Tristan Thompson.

[46] Holiday made his debut for the team the next day, recording six points, four assists and two steals in a 132–119 win over the Minnesota Timberwolves.

[47] On July 6, 2022, Holiday and Maurice Harkless were traded to the Atlanta Hawks in exchange for Kevin Huerter.

[49] On February 9, 2023, Holiday and Frank Kaminsky and two future second-round draft picks were traded to the Houston Rockets in exchange for Bruno Fernando and Garrison Mathews.

[55][56] His parents both played college basketball at Arizona State,[56] where Toya was named Pac-10 Player of the Year in 1982.

[58] Additionally, he is the brother-in-law of Jrue's wife, U.S. women's national soccer team player Lauren Holiday.