John William Danks (born April 15, 1985) is an American former professional baseball pitcher.

The 72–90 White Sox provided Danks with little support in the first half of the season; he was 5–6 with an acceptable 4.62 ERA before the break.

The second-year lefty pitched masterfully, ranking among the league leaders in ERA all season and taking no-hit games beyond the fifth inning on several occasions.

Danks set career bests in nearly every major statistical category, finishing with a 12–9 record, 3.32 ERA (fifth in the American League) and 1.23 WHIP in 33 starts.

[6] Making his first career short-rest start in the one-game playoff for the American League Central Division title, Danks defeated the visiting Minnesota Twins 1–0 with eight dominant innings of two-hit ball.

[6] On December 29, 2011, Danks agreed to terms with the White Sox on a five-year, $65 million deal, which took him through his final arbitration eligible season and his first four free agency years.

[10] That injury turned out to be season-ending, as he had surgery on August 6 on his left shoulder to "explore and correct issues" found there.

According to Elias Sports Bureau, it was the first time since June 5, 1955, that a player homered in support of his brother pitching, when Kansas City Athletics catcher Billy Shantz homered in support of his brother Bobby Shantz.