2021 Houston Astros season

The 2021 Houston Astros season was the 60th season for the Major League Baseball (MLB) franchise located in Houston, Texas, their 57th as the Astros, ninth in both the American League (AL) and AL West division, and 22nd at Minute Maid Park. They entered the season as a wild card qualifier through a second-place finish in the AL West for a fourth consecutive postseason appearance. Houston ultimately progressed to the American League Championship Series (ALCS)—also their fourth consecutive—where they were defeated by the Tampa Bay Rays in seven games. .

Four Astros players gained selection to the 2021 All-Star Game: second baseman Jose Altuve, shortstop Carlos Correa, outfielder Michael Brantley, and pitcher Ryan Pressly. First baseman Yuli Gurriel won the AL batting title, his first, with a .319 batting average, becoming the second Cuban-born player and second Astro after Altuve to do so. Correa led AL position players with 7.2 Wins Above Replacement (WAR).

The Astros concluded the regular season with a 95–67 record, while clinching an AL West title for the fourth time in the last five seasons. It was also the 11th division title in franchise history, sixth playoff berth over the previous seven years, and 15th playoff appearance overall. By winning the AL West, Dusty Baker became the first manager in major league history to guide five different clubs to a division title, giving him eight division titles overall.

In the playoffs, the Astros defeated the Chicago White Sox in the American League Division Series (ALDS) in four games to advance to their fifth straight ALCS. They faced the Boston Red Sox in a rematch of the 2018 ALCS. The Astros won the ALCS in six games for the fourth pennant in franchise history and third as an AL team. They advanced to the World Series for the third time in five years, but lost to the Atlanta Braves in six games.

Following the season, designated hitter Yordan Alvarez (second selection) and right fielder Kyle Tucker (first) were both selected for 2021's All-MLB Second Team. Gurriel and Correa each won their first Gold Glove Awards, while the Astros were named the AL Gold Glove Team. Correa also won the Platinum Glove and Fielding Bible Awards both for the first time.

An American League (and franchise) record five Astros were named Gold Glove finalists, along with another five as finalists for the Silver Slugger Award. Baker and pitcher Luis García were named finalists for the AL Manager of the Year and AL Rookie of the Year awards, respectively. Baker finished third in voting, and García finished second. This marked the third consecutive season that an Astros player was named a finalist for the AL Rookie of the Year Award, following Yordan Alvarez, who won it unanimously in 2019, and Cristian Javier, who finished in third in 2020. .