Christopher Michael Smith (born April 9, 1981) is an American former professional baseball pitcher and current pitching coach in the Oakland Athletics organization.

He previously played in Major League Baseball (MLB) for the Boston Red Sox, Milwaukee Brewers, and Oakland Athletics.

[6] On June 21, Smith made his debut against the St. Louis Cardinals at Fenway Park in the second inning with the bases loaded in relief of Daisuke Matsuzaka.

[8] Smith earned his first major league win on June 24, 2008, pitching two scoreless innings against the Arizona Diamondbacks in relief of starter Justin Masterson.

On January 27, 2010, Smith was designated for assignment by the Milwaukee Brewers to make room on the roster for Joe Inglett.

He signed with the Seattle Mariners on a minor league contract and ended up playing for the Tacoma Rainiers in 2011 before being released during the season.

For the 2016 season, Smith signed a minor league contract with the Oakland Athletics and was assigned to Triple-A Nashville Sounds.

[20] He made his first MLB appearance in nearly six years on August 7, 2016, pitching a scoreless ninth inning while striking out Dexter Fowler.