Justin Joyner (born February 25, 1988) is an American college basketball coach. He is currently an assistant coach for Michigan Wolverines men's basketball, but upon the conclusion of Michigan's 2026 NCAA tournament, he is set to join the Oregon State Beavers as their new head coach. He previously held assistant roles at the University of Michigan and Saint Mary's College of California. As a player and an assistant coach, Joyner has won championships at every stop of his career.
Joyner attended De La Salle High School in Concord, California, where he was the starting point guard for the 32–1 California State Division I champions in 2006. In the championship game, after his teammates missed all three prior free throw attempts in the final minute, he made a pair with 7.7 seconds left in a 43-40 victory over Clovis West High School.
Joyner played college basketball for the UC Santa Barbara Gauchos from 2006 through 2011, where he appeared in 112 games with 74 starts, averaging 3.4 points, 2.1 rebounds, 3.2 assists, and 1.2 steals per game. He was also a three-time team captain and a 2007 all-freshman selection by the Big West Conference. The was co-champion (with Cal State Fullerton and ). Joyner threw the 3/4 court pass in overtime with 0.3 seconds left to set up the tiebreaking points for the championship. With Joyner as its starting point guard, the team set a school record with 23 wins. He had played the entire 2007âÂÂ08 season with a broken bone in his right wrist and the surgery did not heal in time for him to play during the 2008âÂÂ09 season. The 2009âÂÂ10 Gauchos were also the Big West regular season co-champion (with ). The Gauchos won the 2010 and 2011 Big West Conference men's basketball tournaments.
After graduating from , Joyner earned $800/month ($ in ) in a San Francisco Bay Area AAU program coaching youth basketball.
Joyner got his first career coaching job in 2017 as the Director of Basketball Operations for the Saint Mary's Gaels of the West Coast Conference (WCC). After one season, he was promoted to assistant coach. Before the start of the 2022 season, Joyner was once again promoted to be the team's associate head coach. The 2018âÂÂ19 Gaels won the 2019 WCC tournament, with Joyner as an assistant coach. In Joyner's final two seasons with Saint Mary's as an associate coach, the 2022âÂÂ23 and 2023âÂÂ24 Gaels won the 2022âÂÂ23 and 2023âÂÂ24 WCC regular season championships, respectively. The also won the 2024 WCC tournament during this span.
In April 2024, he was hired by Dusty May at the University of Michigan as an assistant coach for the Wolverines. The 2024âÂÂ25 Wolverines won the Big Ten tournament. The 2025âÂÂ26 Wolverines won the Big Ten Conference regular season.
On March 11, 2026, Joyner was hired to be the head coach at Oregon State University for the Beavers. Oregon State would be returning to the newly revamped Pac-12 Conference for the 2026-27 season where the Gonzaga Bulldogs were expected to be the dominant program. Joyner had enjoyed prior coaching successes against Gonzaga. On March 16, he held a press conference in Corvallis, Oregon, to meet the local press as after agreeing to a five-year contract worth $4.85 million.
Joyner will remain with Michigan through the 2026 NCAA tournament, although there was an urgency at Oregon State to "retain players, to build a staff, and to prepare for the transfer portal". He will formally begin as head coach on the day after Michigan's tournament ends. On March 25, his coaching staff's first two additions were announced: Danny Yoshikawa and Michael Plank.
Joyner's wife, Tracy, is the head soccer coach at the University of Oregon. They have a daughter, Weslee. Before being hired by Oregon in December 2024, Tracy had spent five years as head coach for the UC Davis Aggies. They had lived together in the Bay area near Saint Mary's until their 2024 coaching changes.