Edinson Volquez (born July 3, 1983 in Santo Domingo, Dominican Republic), is a starting pitcher in Major League Baseball for the Cincinnati Reds. He bats and throws right-handed.

Listed at 6'0", 200 pounds, Volquez made his major league debut on August 30, 2005, after rising rapidly through Texas' minor league system. Together with John Danks and Thomas Diamond, Volquez was one third of the vaunted "DVD" trio of Rangers pitching prospects.

Volquez's first stint in the major leagues was disastrous. After spending four years in the Rangers' minor league system, Volquez was promoted to the major league club on August 30, 2005, where he lost all three games he started, as well as one of the three games in which he appeared as a reliever, and posted a 14.21 ERA. He spent the first five months of the 2006 season at Triple-A Oklahoma until he was recalled to the majors in September. This time, he fared better, winning one of his eight starts and posting a 7.29 ERA. The Rangers were unsatisfied with the results shown by one of their top pitching prospects, so they tried an unconventional tactic. Volquez was demoted to the Rangers' A-league affiliate, the Bakersfield Blaze, to work on his control. As Volquez progressed, he was slowly promoted up through the minor league system until he reached the big leagues in September. This tactic had been used by Mark Connor, the Rangers' pitching coach, once before. When he was with Toronto in 2001, he demoted pitcher Roy Halladay to the low minors to work on his fundamentals. Halladay met the challenge and won the Cy Young Award two years later. In 2007 Volquez showed much improvement in his big league performance.