1973 Houston Astros season

The 1973 Houston Astros season was a season in American baseball. The team finished fourth in the National League West with a record of 82–80, 17 games behind the Cincinnati Reds.

Offseason

 * November 27, 1972: Rich Chiles and Buddy Harris were traded by the Astros to the New York Mets for Tommie Agee.
 * January 10, 1973: Mike Stanton was drafted by the Astros in the 1st round (5th pick) of the 1973 Major League Baseball draft (secondary phase).

Regular season

 * June 19, 1973: Dave Winfield of the San Diego Padres made his major league debut against the Astros. Winfield had one hit in four at-bats.

Notable transactions

 * July 31, 1973: Jesús Alou was purchased from the Astros by the Oakland Athletics.
 * August 18, 1973: Tommie Agee was traded by the Astros to the St. Louis Cardinals for Dave Campbell and cash.

Draft picks

 * June 5, 1973: 1973 Major League Baseball draft
 * Ken Landreaux was drafted by the Astros in the 8th round, but did not sign.
 * Mike Davey was drafted by the Astros in the 18th round, but did not sign.

Starters by position
''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Other batters
''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Starting pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers
Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts