Joaquin Arias is a former professional baseball player who played in the Major League Baseball (MLB) as an infielder. He was born on September 21, 1984, in Santo Domingo, Dominican Republic. Arias began his professional baseball career in 2001 when he signed with the Texas Rangers as an international free agent.

Arias spent several years in the minor leagues, playing for various teams in the Rangers organization. He made his MLB debut on April 6, 2006, with the Rangers, but he only played in 11 games that season. Over the next few years, Arias bounced between the minor leagues and the majors, playing for the Rangers, New York Mets, and Kansas City Royals.

In 2012, Arias signed with the San Francisco Giants, where he would spend the majority of his MLB career. He played for the Giants from 2012 to 2015, primarily as a utility infielder. During his time with the Giants, Arias was known for his defensive skills and versatility, as he could play multiple positions in the infield.

One of the highlights of Arias' career came during the 2012 postseason, when he played a key role in the Giants' World Series championship run. In the NLCS against the St. Louis Cardinals, Arias hit a crucial RBI single in Game 2, which helped the Giants win the game and eventually the series. In the World Series against the Detroit Tigers, Arias played in three games and recorded two hits, including a double.

Overall, Arias played in 442 MLB games over the course of his career, batting .265 with 2 home runs and 49 RBIs. While he was never a star player, Arias was a valuable contributor to several teams throughout his career, thanks to his defensive skills and versatility.

After the 2015 season, Arias became a free agent and did not sign with another team. He officially retired from professional baseball in 2018. Since retiring, Arias has remained involved in the sport, working as a coach and instructor in the Dominican Republic.