Pedroia is listed by Major League Baseball and the Red Sox as 5' 9" (175 cm) and 180 pounds. In 2003 a USA Today article gave his height as 5' 7" (170 cm), and when he was in college the NCAA and Arizona State University gave his height as 5' 8".
On June 29, 2011, Pedroia started a 25 game hitting streak, the most for a Boston Red Sox second baseman. On August 16, 2011, Pedroia was involved in throwing a triple play, started by Jed Lowrie.
Pedroia is of Portuguese and Swiss (Maggia) heritage. Pedroia is the nephew of Detroit Lions linebacker coach Phil Snow.
On January 9, 2009, Pedroia was named as the cover athlete of the baseball video game MLB 09: The Show, and appeared in several commercials for the game.
On August 18, 2009 Dustin's wife Kelli gave birth to the couple's first child, a boy.
Dustin Pedroia is a fan of the NBA team, the Sacramento Kings, and NFL team, the San Francisco 49ers.