Jackie Bradley Jr. (born April 19, 1990), nicknamed "JBJ", is an American professional baseball outfielder for the Indianapolis Clowns of the Banana Ball Championship League and sports broadcaster. He played in Major League Baseball (MLB) for the Boston Red Sox, Milwaukee Brewers, Toronto Blue Jays, and Kansas City Royals. Listed at 5 feet 10 inches (1.78 m) and 200 pounds (91 kg), he bats left and throws right-handed.

Bradley played college baseball for the University of South Carolina, and was named the 2010 College World Series Most Outstanding Player. The Red Sox chose Bradley with the 40th overall pick in the 2011 MLB draft and he made his MLB debut in 2013. Bradley was an All Star in 2016 and named the most valuable player of the 2018 American League Championship Series. Known especially for fielding ability, he won a Gold Glove Award in 2018. Bradley left the Red Sox in free agency for the Brewers after the 2020 season, but the Brewers traded him back to the Red Sox one year later in exchange for Hunter Renfroe.

Bradley attended Prince George High School in Prince George, Virginia. He was named to the 2008 Virginia AAA All-State team and was listed as the 40th-best Virginia-based baseball prospect for the 2008 Major League Baseball draft by Baseball America.

With the University of South Carolina, Bradley began his college baseball career with the South Carolina Gamecocks baseball team in 2009. As a freshman, Bradley hit .349 and scored 69 runs in 63 games played. Posting a slugging percentage of .537, he hit 11 home runs while walking 34 times and striking out 31 times. After the 2009 season, he played collegiate summer baseball with the Hyannis Mets of the Cape Cod Baseball League.

In 2010, Bradley batted .368 and 13 home runs, driving in 60 runs while scoring 56 times in 67 games. Then, he went 10-for-29 (.345) at the plate in the 2010 College World Series (CWS), earning CWS Most Outstanding Player honors.

The Boston Red Sox selected Bradley in the supplemental first round, with the 40th overall selection, of the 2011 Major League Baseball draft. Bradley made his professional debut on August 23, 2011, with the short-season A Lowell Spinners, hitting .250 in 10 games split between Lowell and the single-A Greenville Drive. Bradley was named Minor League Defensive Player of the Year by the Red Sox organization for the 2012 season, which he split between the high-A Salem Red Sox and double-A Portland Sea Dogs. He hit .315 with 55 extra-base hits, 87 walks, and 63 RBI in 128 games.

Entering 2013, Bradley ranked 32nd overall on the MLB.com Top 100 Prospects list. After an outstanding spring training, on March 31, manager John Farrell announced that Bradley would be the Opening Day left fielder on April 1 at Yankee Stadium. Although he went hitless in two at-bats, Bradley had three walks, scored two runs, drove in one run, and made a couple of hustle plays on the basepath and in the field in the Red Sox' 8–2 win over the New York Yankees.

Bradley went 3-for-31 with three RBIs in Boston before being optioned to the Triple-A Pawtucket Red Sox on April 19; Bradley was demoted to accommodate David Ortiz, who started the 2013 season on a rehab assignment, recovering from a right Achilles injury. Bradley was recalled on May 29. He hit his first career home run on June 4 against the Texas Rangers. Bradley was optioned back to Pawtucket on June 8 when Shane Victorino was activated from the disabled list. He was recalled again on July 9, and optioned back to Pawtucket on July 14. He was recalled on September 7. In 37 Major League games of 2013, Bradley batted .189 with three home runs, 10 RBI, and two stolen bases. The Red Sox finished the year with a 97–65 record and clinched the AL East division. Bradley was not on Boston's postseason roster as the team went on to win the 2013 World Series.