Edinson Vólquez (Spanish: [ˈeðinsom ˈbolkes];[a] born July 3, 1983) is a Dominican former professional baseball pitcher.

He played in Major League Baseball (MLB) for the Texas Rangers, Cincinnati Reds, San Diego Padres, Los Angeles Dodgers, Pittsburgh Pirates, Kansas City Royals and Miami Marlins.

He spent the first five months of the 2006 season with the Oklahoma RedHawks of the Class AAA Pacific Coast League until he was recalled to the majors in September.

Vólquez showed much improvement in his big league performance that season, posting a 2–1 record and 4.50 ERA in six starts.

"[1] On December 21, 2007, the Rangers traded Vólquez to the Cincinnati Reds, along with Daniel Ray Herrera, in a deal for Josh Hamilton.

In 5+1⁄3 innings of work, he allowed only five hits, one earned run and two walks while striking out eight batters in an 8–2 victory.

On May 18, 2008, Vólquez participated in a pitching matchup with the Cleveland Indians' Cliff Lee, who at that point led the American League with an ERA of 0.67.

He started Game 1 of the 2010 National League Division Series against the Philadelphia Phillies and lost, allowing four earned over 1.2 innings with Roy Halladay throwing a no-hitter.

[10] Vólquez was the Reds' Opening Day starter in 2011 and finished the season 5–7 with a 5.71 ERA in 20 starts for Cincinnati.

[11] On December 17, 2011, Vólquez, Yonder Alonso, Yasmani Grandal, and Brad Boxberger were traded by the Reds to the San Diego Padres for Mat Latos.

On June 2, Vólquez hit his first career home run, a 3-run homer off Toronto Blue Jays pitcher Ramón Ortiz.

The Padres designated Vólquez for assignment on August 24, a day after he gave up six runs while only recording two outs in a start against the Chicago Cubs.

[18][19] Vólquez appeared for the Dodgers that night, pitching one scoreless inning in relief against his former team, the Padres.

[20] Volquez experienced a career rebirth with the Pirates, going 13–7 with a 3.04 ERA and 140 strikeouts in 32 games (31 starts), pitching 192+2⁄3 innings.

Vólquez started the 2014 National League Wild Card Game for the Pirates against the San Francisco Giants.

Vólquez would not come through however, giving up 5 ERs, including a grand slam to Giants shortstop Brandon Crawford, in 5 innings pitched.

[25] Vólquez got the nod to start in Game 5 against Matt Harvey, where he gave up 2 earned runs on only 2 hits in 6 innings with a no-decision.

The Royals again forced the game into extra innings before defeating the Mets to win the World Series.

On June 24, 2016, Vólquez experienced one of the worst starts of his career as he allowed 12 runs (11 earned) in the first inning.

[34] He was later named the NL Player of the Week for the first time in his career, pitching 15 innings allowing one run (an 0.60 ERA) and four hits with 14 strikeouts in two starts.

[35][36] On February 16, 2018, Vólquez signed a two-year minor league contract with the Texas Rangers, with the 2018 season spent recovering from Tommy John surgery.

He took the loss in the opening game for the Dominican Republic against the Netherlands, giving up three runs (unearned), two hits, two walks and three strikeouts in three innings pitched.

[41] Vólquez again pitched for the eventual champion Dominican Republic in the 2013 World Baseball Classic, starting the first game in each of the three tournament rounds.