The Cy Young Award is given annually to the best pitchers in Major League Baseball (MLB), one each for the American League (AL) and National League (NL). The award was introduced in 1956 by Baseball Commissioner Ford C. Frick in honor of Hall of Fame pitcher Cy Young, who died in 1955. The award was originally given to the single best pitcher in the major leagues, but in 1967, after the retirement of Frick, the award was given to one pitcher in each league.

Each league's award is voted on by members of the Baseball Writers' Association of America (BBWAA). Local BBWAA chapter chairmen in each MLB city recommend two writers to vote for each award. Final approval comes from the BBWAA national secretrary-treasurer. Writers vote for either the American League or National League awards, depending on the league in which their local team plays. A total of 30 writers vote for each league's awards. Writers cast their votes prior to the start of postseason play.

As of the 2010 season, each voter places a vote for first, second, third, fourth, and fifth place among the pitchers of each league. The formula used to calculate the final scores is a weighted sum of the votes.^[A] The pitcher with the highest score in each league wins the award. If two pitchers receive the same number of votes, the award is shared. From 1970 to 2009, writers voted for three pitchers, with the formula of five points for a first-place vote, three for a second-place vote and one for a third-place vote. Before 1970, writers only voted for the best pitcher and used a formula of one point per vote.