On February 24, 2011, Davis was traded to the Cleveland Cavaliers along with a first round pick (which turned out to be the first overall pick in the 2011 NBA draft, Kyrie Irving), in exchange for Mo Williams and Jamario Moon. This trade to Cleveland marked a reunion between Davis and former coach Byron Scott, to which Davis was quoted as saying "I know we're together for a reason. There's some things my game can benefit from just playing in his system". Davis chose to wear no. 85 to honor his grandparents who raised him in Los Angeles and whose house was on 85th Street. In his debut with the Cavs, Baron scored 18 points, grabbed 4 rebounds, had 5 assists, and made four three-point shots, in a win over the New York Knicks.