Kevin Jermaine Ollie (born December 27, 1972) is an American basketball coach and former player who most recently was the interim head coach for the Brooklyn Nets of the National Basketball Association (NBA).

He is the former head coach of the University of Connecticut men's basketball team and one of only four African-American coaches to ever win an NCAA men's basketball championship. Ollie graduated from UConn in 1995 with a degree in communications. He played for twelve NBA franchises, most prominently in three stints with the Philadelphia 76ers, in thirteen seasons from 1997 to 2010 after beginning his career with the CBA in 1995.

After retiring from professional basketball in 2010, Ollie joined UConn as an assistant coach; in 2012 he was promoted to head coach following the retirement of Jim Calhoun (who coached Ollie when he was a player). In his second year as Huskies head coach, they won the 2014 NCAA Division I men's basketball tournament. He was fired in 2018.

Ollie was born in Dallas, Texas to parents Fletcher and Dorothy Ollie and grew up in the rough neighborhood of South Central Los Angeles. When Ollie was seven years old, his parents divorced and his father moved to Dallas. He spent summers there, cutting lawns and doing other odd jobs so he could be with him for some length of time. His mother, a school teacher and ordained minister, raised him and his older sisters, Vita and Rhonda, by herself.

Ollie attended and played basketball at Crenshaw High School in Los Angeles, California. He then starred for four seasons (1991–95) at the University of Connecticut. After his college graduation, he joined the Connecticut Pride of the Continental Basketball Association, playing with them from 1995 to 1997. After that, he began playing in the NBA.

The Minnesota Timberwolves made Ollie their captain during the 2008–09 season. He was then signed by the Oklahoma City Thunder on August 1, 2009, for the veteran's minimum. After the season Ollie retired to join the Connecticut Huskies as an assistant coach.

NBA player Kevin Durant in an interview with Grantland said that Ollie (who played for the Oklahoma City Thunder during the 2009–10 season) "taught him the ropes", and "changed the culture of Oklahoma City". He also said, "Kevin Ollie, he was a game changer for us. I think he changed the whole culture in Oklahoma City. Just his mind set, professionalism, every single day. And we all watched that, and we all wanted to be like that. It rubbed off on Russell Westbrook, myself, Jeff Green, James Harden. And then everybody who comes through now, it's the standard that you've got to live up to as a Thunder player. And it all started with Kevin Ollie."

Ollie had previously played a similar role with the Cleveland Cavaliers. Jim Paxson, Cavaliers GM at the time, recalled his motivation for signing Ollie: "We thought he could come in and be a bridge for us at the point guard position," Paxson recalled, "and also be a good influence on our younger players, the primary one being LeBron James." Paxson cited Ollie's "professionalism and approach to the game" as qualities the team valued.