Christopher Brian Johnson (born December 7, 1990) is an American former professional baseball pitcher who played in Major League Baseball (MLB) for the Boston Red Sox. Listed at 6 feet 4 inches (1.93 m) and 235 pounds (107 kg), he both throws and bats left-handed. Johnson was the 2012 recipient of the John Olerud Award.

Johnson graduated from Cocoa Beach High School in Cocoa Beach, Florida, in 2009, where he was a five-year letterman for the Minutemen. He was coached during his high school baseball career by Matt Kellam and Rich Coleman. Johnson was named the Florida Today Baseball Player of the Year as well as First-Team All-State in Florida in both 2008 and 2009. He finished with 352 strikeouts in 252+2⁄3 career innings and a career batting average of .481 with 98 runs, 40 doubles, 21 home runs and 95 RBI. Johnson also fired a 17-strikeout no-hitter against Space Coast High School in his senior year. Johnson was ranked the No. 84 player in the United States by Baseball America in 2009. He was drafted by the Los Angeles Dodgers in the 27th round of the 2009 MLB draft but did not sign, choosing to play college baseball at the University of Florida instead. He pursued a degree in anthropology.

Johnson was part of the No. 1 recruiting class by Baseball America at Florida and was named a freshman All-American by Baseball America, Yahoo! Sports, National Collegiate Baseball Writers Association, and Louisville Slugger in 2010.

Johnson served as the No. 2/3 starting pitcher for the Florida Gators baseball team in 2010. Johnson's pitching repertoire featured a low 90's fastball, changeup, and curveball. He helped lead the Gators to their first College World Series (CWS) appearance since 2005. The Gators were ranked as high as No. 2 in the country by Baseball America. Johnson was also named to the John Olerud Award watch-list. The award, given to the top two-way player in America, was won by Mike McGee of Florida State University. The Gators were eliminated by Florida State 8–5 in the CWS and finished with a regular season record of 47–17.

Johnson finished the season with a .405 batting average, five doubles, four home runs and 21 RBIs. As a pitcher, he finished with a 6–4 record in 14 starts, recording 14 walks, 51 strikeouts, and a 4.03 ERA in 73+2⁄3 innings.

In 2011, he played collegiate summer baseball in the Cape Cod Baseball League for the Yarmouth-Dennis Red Sox. In 2012, Johnson won the John Olerud Award as the best two-way player in college baseball.

The Boston Red Sox selected Johnson in the first round, with the 31st pick, of the 2012 MLB draft. He signed with the Red Sox on June 27, and received a signing bonus of $1,575,000.

Johnson made his professional debut with the Lowell Spinners of the Low–A New York–Penn League after signing. Due to his heavy workload with Florida, the Red Sox limited Johnson's appearances for the rest of the season. He appeared in four games for Lowell, and had his season end prematurely when a line drive broke the orbital bones in his face during the annual Futures at Fenway event. In 2013, Johnson began the season with the Greenville Drive of the Single–A South Atlantic League and was promoted to the Salem Red Sox of the High–A Carolina League in August. The Red Sox assigned Johnson to Salem at the beginning of the 2014 season. After making five starts for Salem, he was promoted to the Portland Sea Dogs of the Double–A Eastern League in May. The Red Sox named Johnson their Minor League Pitcher of the Year at the end of the 2014 season, after going 13–3 with 132 strikeouts and a 2.13 ERA.