David Matthew Murphy (born October 18, 1981 in Houston, Texas) is a Major League Baseball outfielder for the Texas Rangers. He played high school baseball with Cleveland Indians second baseman Josh Barfield and was drafted in the 1st round of the 2003 draft by the Boston Red Sox, out of Baylor University in Waco, Texas.
In , Murphy played 42 games for the Sea Dogs before being promoted to Pawtucket on May 26. While at Portland, Murphy had 47 hits in 172 at-bats (.273 batting average), with 17 doubles, 1 triple, 3 home runs, 25 RBI, and 11 walks. Murphy appeared in 84 games, going 85-for-318 (.267), with 23 doubles, 5 triples, 8 home runs, 44 RBI, and 45 walks. In 2006, he appeared in 20 games for the Boston Red Sox. He hit a 1-2 pitch into center field at Fenway Park in his first major league at-bat for his first major league hit (a single) on September 2, 2006. He hit his first MLB home run against New York Yankees pitcher Jaret Wright on September 17, 2006, at Yankee Stadium.
On August 7, , Murphy was placed on the 15-day DL after suffering a knee injury in a collision at home plate with Iván Rodríguez of the New York Yankees. Murphy would not play another game in the 2008 season, when swelling to his knee cut his attempts at rehab short.